“I Realized, Really For The First Time, That People Who Didn’t Even Know Me Were Wishing For My Success

“I Realized, Really For The First Time, That People Who Didn’t Even Know Me Were Wishing For My Success
“I Realized, Really For The First Time, That People Who Didn’t Even Know Me Were Wishing For My Success

“I realized, really for the first time, that people who didn’t even know me were wishing for my success —  hoping to share in the pride of future accomplishments, but even more important, willing to provide encouragement in the face of disappointments. I hope that by sharing my experiences, others will be inspired to set high goals for themselves.”

- Ellen Ochoa is the first Hispanic director of NASA’s Johnson Space Center and the first Hispanic woman to go to space.

Q: You were the first Hispanic woman to go to space, and you’re the first Hispanic director of the Johnson Space Center. What does the achievement of firsts like these mean to you? What kind of responsibility comes with paving the way?

Becoming an astronaut was a personal goal for me, so I was surprised and overwhelmed to receive such warm support from the entire Hispanic community when I was selected for the astronaut corps. I realized, really for the first time, that people who didn’t even know me were wishing for my success —  hoping to share in the pride of future accomplishments, but even more important, willing to provide encouragement in the face of disappointments. In the same way, in addition to working hard to do my best at every position I’ve had, it became an important part of my job to provide encouragement to others, particularly women and minorities underrepresented in STEM [Science Technology Engineering and Math] fields. I hope that by sharing my experiences, others will be inspired to set high goals for themselves.

Q: Have you experienced any particular challenges as a female astronaut? How have you stayed motivated in the face of such challenges?

Actually, the women astronauts who came before me performed their jobs so well that it really wasn’t an issue.  There was probably more skepticism due to my research background, given that the job is an operational one, and I didn’t have much experience in that environment. The training we’re provided helped prepare me well, as did veterans astronauts who passed on helpful tips.

Q: As a pioneer of spacecraft technology and a champion of outreach, how do you think we can inspire more women to enter STEM fields?

Use every available communications avenue to let women know about the interesting and rewarding careers in the STEM fields. The website Women@NASA profiles many women around the agency, having them describe in their own words what they do and the path that led them to their careers. And since girls start making choices in middle school that can limit their options later on, there’s a section on the website aimed specifically at middle school girls called Aspire to Inspire featuring women at Johnson Space Center. NASA has also made great use of many social media platforms to spread the word on what we are doing in space exploration, both human and robotics. From the first flyby of Pluto to the completion of a one-year mission onboard the International Space Station, this has been an exciting year for NASA.

More Posts from Nasa and Others

7 years ago
The Total Solar Eclipse Is Coming! Here’s Your Chance To Ask An Eclipse Scientist Your Questions! Have

The total solar eclipse is coming! Here’s your chance to ask an eclipse scientist your questions! Have questions about the upcoming total solar eclipse on August 21? Join our Tumblr Answer Time session on Thursday, August 17 from 3:00 – 4:00 p.m. EDT/12:00 - 1:00 p.m. PDT. here on NASA’s Tumblr, where space physics researcher Alexa Halford will answer them. Make sure to ask your questions now by visiting: https://nasa.tumblr.com/ask!

See all the #AnswerTime questions here: https://nasa.tumblr.com/tagged/answertime

Alexa Halford is a space physics researcher at our Goddard Space Flight Center and Dartmouth College. She started researching waves in Earth's magnetosphere as an undergraduate at Augsburg College with Mark Engebretson using ground based magnetometers in the Arctic and Antarctic. She moved away from waves to focus on geomagnetic storms and substorms during her masters at the University of Colorado Boulder with Dan Baker but returned once more to waves with her PhD at University of Newcastle NSW Australia. Her PhD thesis was on Electromagnetic Ion Cyclotron (EMIC) waves during the CRRES mission and their relationship to the plasmasphere and radiation belts.

She is member of the scientific team for a NASA-funded scientific balloon experiment project called BARREL (Balloon Array for RBSP Relativistic Electron Losses) where she looks at the population of particles lost due to these interactions. She is now currently a contractor at NASA Goddard continuing work the BARREL and NASA Van Allen Probes satellite missions.

To get more information about the eclipse, visit: https://eclipse2017.nasa.gov/

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5 years ago
Photograph Of The Apollo 13 Spacecraft Being Returned To The Prime Recovery Ship, USS Iwo Jima, 4/17/1970

Photograph of the Apollo 13 Spacecraft Being Returned to the Prime Recovery Ship, USS Iwo Jima, 4/17/1970

Series: Color Photograph Files, 1965 - 2002. Record Group 255: Records of the National Aeronautics and Space Administration, 1903 - 2006. 

Apollo 13 was intended to be the third Apollo mission to land on the Moon. The craft was launched from Kennedy Space Center in Merritt Island, Florida on April 11, 1970. Two days into the flight, damaged wire insulation inside the oxygen tank in the service module ignited, causing an explosion which vented the oxygen tank into space. Without oxygen, the service module became inoperable and the lunar mission quickly turned into a mission to safely return the crew to Earth. The astronauts worked with Mission Control to shut down the command module in order to conserve the remaining oxygen, forcing all three astronauts into the lunar module. The astronauts continued to work with Mission Control to combat one technical failure after another until, on April 17, 1970, the crew landed safely in the South Pacific Ocean.

source: phillyarchives.tumblr.com

9 years ago

How Do Cargo Spacecraft Work?

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Today is the day that our commercial partner, Orbital ATK, has set for the launch of its fourth contracted mission to the International Space Station. The Cygnus spacecraft will carry more than 7,000 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory.

How Does it Launch?

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This mission is the first Cygnus mission to utilize NASA’s Kennedy Space Center and launch from the Cape Canaveral Air Force base in Cape Canaveral, Florida.

The cargo will be launched inside the Orbital ATK Cygnus spacecraft using a United Launch Alliance Atlas V rocket. 

But how does it get there? Is there someone on the ground controlling and directing it to the space station? Surprisingly, no. After launch, the Cygnus spacecraft is automated until it gets near the station. At that point, the robotic controllers use the CanadArm2 to reach out and grapple it (grab), and then berth (connect) it to the station.

What’s Inside?

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In order to keep the thousands of pounds of supplies, science and hardware from moving during launch and in flight, the cargo is packed in bags and strapped to the walls.

The new experiments arriving to the space station will challenge and inspire future scientists and explorers. A few of the highlights are:

The Packed Bed Reactor Experiment (PBRE) - This experiment (image below) will study the behavior of gases and liquids when they flow simultaneously through a column filled with fixed porous media. The findings from this will be of interest in many chemical and biological processing systems as well as many geophysical applications.

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BASS-M (Burning and Suppression of Solids – Milliken) - This experiment (image below) will evaluate flame retardant and/or resistant textiles as a mode of personal protection from fire-related hazards. Studying this in microgravity will aid in better designs for future textiles and benefit those who wear flame retardant and/or resistant protective apparel such as military personnel and civilian workers in the electrical and energy industries. 

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Space Automated Bioproduct Lab (SABL) - This equipment is a single locker-sized facility (image below) that will enable a wide variety of fundamental, applied and commercial life sciences research. It will also benefit K-16 education-based investigations aboard the space station. Research will be supported on microorganisms (bacteria, yeast, algae, fungi, viruses, etc.), animal cells and tissues and small plant and animal organisms.

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Nodes Satellites – These satellites (image below) will be deployed from the space station to demonstrate new network capabilities critical to the operation of swarms of spacecraft. They will show the ability of multi-spacecraft swarms to receive and distribute ground commands, exchange information periodically and more. 

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Holiday Surprises - With the upcoming holidays the crew’s family has the opportunity to send Christmas gifts to their family members on the International Space Station. 

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What About After?

The spacecraft will spend more than a month attached to the space station before it’s detached for re-entry into Earth’s atmosphere in January 2016, disposing of about 3,000 pounds of trash. It will disintegrate while entering the atmosphere. 

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Want to Watch Launch?

Launch coverage begins at 4:30 p.m. EST on Thursday, Dec. 3 on NASA Television. Cygnus is set to lift off on the Atlas V at 5:55 p.m., the beginning of a 30-minute launch window, from Space Launch Complex 41.

In addition to launch coverage, a post-launch briefing will be held approximately two hours after launch. All briefings will air live on NASA TV. 

UPDATE: Due to poor weather conditions, today’s launch has been scrubbed and moved to tomorrow at 5:33 p.m. EST. The forecast for tomorrow calls for a 30% chance of acceptable conditions at launch time. Continuous countdown coverage will be available on NASA Television starting at 4:30 p.m.

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UPDATE 2: The uncrewed Cygnus cargo ship launched at 4:44 p.m. EST on Sunday, Dec. 6 on a United Launch Alliance Atlas V rocket from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida to begin its three-day journey to the orbiting laboratory.

How Do Cargo Spacecraft Work?

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8 years ago

What Science is Launching to Space?

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The tenth SpaceX cargo resupply mission launched to the International Space Station on Feb. 18, and is carrying science ranging from protein crystal growth studies to Earth science payloads. Here’s a rundown of some of the highlights heading to the orbiting laboratory.

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The CASIS PCG 5 investigation will crystallize a human monoclonal antibody, developed by Merck Research Labs, that is currently undergoing clinical trials for the treatment of immunological disease. Results from this investigation have the potential to improve the way monoclonal antibody treatments are administered on Earth.

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Without proteins, the human body would be unable to repair, regulate or protect itself. Crystallizing proteins provides better views of their structure, which helps scientists to better understand how they function. Often times, proteins crystallized in microgravity are of higher quality than those crystallized on Earth. LMM Biophysics 1 explores that phenomena by examining the movement of single protein molecules in microgravity. Once scientists understand how these proteins function, they can be used to design new drugs that interact with the protein in specific ways and fight disease.

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Much like LMM Biophysics 1, LMM Biophysics 3 aims to use crystallography to examine molecules that are too small to be seen under a microscope, in order to best predict what types of drugs will interact best with certain kinds of proteins. LMM Biophysics 3 will look specifically into which types of crystals thrive and benefit from growth in microgravity, where Earth’s gravity won’t interfere with their formation. Currently, the success rate is poor for crystals grown even in the best of laboratories. High quality, space-grown crystals could improve research for a wide range of diseases, as well as microgravity-related problems such as radiation damage, bone loss and muscle atrophy.

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Nanobiosym Predictive Pathogen Mutation Study (Nanobiosym Genes) will analyze two strains of bacterial mutations aboard the station, providing data that may be helpful in refining models of drug resistance and support the development of better medicines to counteract the resistant strains.

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During the Microgravity Expanded Stem Cells investigation, crew members will observe cell growth and morphological characteristics in microgravity and analyze gene expression profiles of cells grown on the station. This information will provide insight into how human cancers start and spread, which aids in the development of prevention and treatment plans. Results from this investigation could lead to the treatment of disease and injury in space, as well as provide a way to improve stem cell production for human therapy on Earth.

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The Lightning Imaging Sensor will measure the amount, rate and energy of lightning as it strikes around the world. Understanding the processes that cause lightning and the connections between lightning and subsequent severe weather events is a key to improving weather predictions and saving life and property. 

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From the vantage of the station, the LIS instrument will sample lightning over a wider geographical area than any previous sensor.

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Future robotic spacecraft will need advanced autopilot systems to help them safely navigate and rendezvous with other objects, as they will be operating thousands of miles from Earth. 

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The Raven (STP-H5 Raven) studies a real-time spacecraft navigation system that provides the eyes and intelligence to see a target and steer toward it safely. Research from Raven can be applied toward unmanned vehicles both on Earth and in space, including potential use for systems in NASA’s future human deep space exploration.

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SAGE III will measure stratospheric ozone, aerosols, and other trace gases by locking onto the sun or moon and scanning a thin profile of Earth’s atmosphere.

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These measurements will allow national and international leaders to make informed policy decisions regarding the protection and preservation of Earth’s ozone layer. Ozone in the atmosphere protects Earth’s inhabitants, including humans, plants and animals, from harmful radiation from the sun, which can cause long-term problems such as cataracts, cancer and reduced crop yield.

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Tissue Regeneration-Bone Defect (Rodent Research-4) a U.S. National Laboratory investigation sponsored by the Center for the Advancement of Science in Space (CASIS) and the U.S. Army Medical Research and Materiel Command, studies what prevents other vertebrates such as rodents and humans from re-growing lost bone and tissue, and how microgravity conditions impact the process. 

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Results will provide a new understanding of the biological reasons behind a human’s inability to grow a lost limb at the wound site, and could lead to new treatment options for the more than 30% of the patient.

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7 years ago

Small Business Saturday: Space Edition!

Today is Small Business Saturday, an annual campaign that American Express started back in 2010 on the Saturday after Thanksgiving to support “local places that make our communities strong.”

Small Business Saturday: Space Edition!

The U.S. Senate has even taken note by passing a bipartisan resolution recognizing November 25, 2017 as Small Business Saturday: “an opportunity for all Americans to rally behind these local, independently-owned businesses and support the entrepreneurs who keep our families employed.”

Here at NASA, we look to promote and integrate small businesses across the country into the work we do to pioneer the future of space exploration, scientific discovery and aeronautics research.

Our Small Business Innovative Research (SBIR) and Small Business Technology Transfer (STTR) program seeks to fund the research, development and demonstration of innovative technologies that help address space exploration challenges and have significant potential for commercialization. In fiscal year 2017, our program awarded 567 contracts to 277 small businesses and 44 research institutions for a total of $173.5M that will enable our future missions into deep space and advancements in aviation and science, while also benefiting the U.S. economy. This year, the SBIR/STTR program’s Economic Impact Report indicated a $2.74 return for every dollar spent on awards—money well spent!

Small Business Saturday: Space Edition!

Our small business partners’ ideas have helped our work become more efficient and have advanced scientific knowledge on the International Space Station. Over 800 small businesses are contributing to the development of our Space Launch System rocket that will carry humans to deep space. SBIR/STTR program awardees are also helping the Curiosity Rover get around Mars and are even preparing the Mars 2020 Rover to search for signs of potential life on the Red Planet.

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Small businesses are also contributing to scientific advances here on Earth like helping our satellites get a clearer picture of soil moisture in order to support water management, agriculture, and fire, flood and drought hazard monitoring.

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In an effort to improve our understanding of the Arctic and Antarctica, a small business developed a cost-saving unmanned aircraft system that could withstand some of the coldest temperatures on the planet.

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Does your small business have a big idea? Your next opportunity to join the SBIR/STTR program starts on January 11, 2018 when our latest solicitation opens. 

We’ll be seeking new ideas from small businesses and research institutions for research, development and demonstration of innovative technologies. Go to www.nasa.sbir.gov to learn more.

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8 years ago

Solar System: Things to Know This Week

Ready for a free show? Here’s our guide to the brightest shows on Earth for 2017--meteor showers! And, there’s no telescope required.

The sky may not be falling, but it can certainly seem that way during a meteor shower. Shooting stars, as meteors are sometimes called  occur when rock and debris in space fall through the Earth's atmosphere, leaving a bright trail as they are heated to incandescence by friction with the air. Sometimes the number of meteors in the sky increases dramatically, becoming meteor showers. Some showers occur annually or at regular intervals as the Earth passes through the trail of dusty debris left by a comet. Here's a guide to the top meteor showers expected in 2017.

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1. Quadrantids, January 3-4  

At its peak this shower will have about 40 meteors per hour. The parent comet is 2003 EH1, which was discovered in 2003. First quarter moon sets after midnight and meteors radiate from the constellation Bootes. 

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2. Eta Aquarids, May 6-7

This shower will have up to 60 meteors per hour at its peak and is produced by dust particles left behind by comet Halley, which has been known and observed since ancient times. The shower runs annually from April 19 to May 28. The waxing gibbous moon will block out many of the fainter meteors this year. Meteors will radiate from the constellation Aquarius.

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3. Perseids, August 12-13

The annual Perseid shower will have up to 60 meteors per hour at its peak. It is produced by comet Swift-Tuttle. The Perseids are famous for producing a large number of bright meteors. The shower runs annually from July 17 to August 24. The waning gibbous moon will block out many of the fainter meteors this year, but the Perseids are so bright and numerous that it should still be a good show. Meteors will radiate from the constellation Perseus.

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4. Draconids, October 7

This is a minor shower that will produce only about 10 meteors per hour. It is produced by dust grains left behind by comet 21P Giacobini-Zinner, which was first discovered in 1900. The Draconids is an unusual shower in that the best viewing is in the early evening instead of early morning like most other showers. The shower runs annually from October 6-10 and peaks this year on the the night of the 7th. Unfortunately, the nearly full moon will block all but the brightest meteors this year. If you are extremely patient, you may be able to catch a few good ones. Meteors will radiate from the constellation Draco.

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5. Geminids, December 13-14

The Geminids may be the best shower, producing up to 120 meteors per hour at its peak. It is produced by debris left behind by an asteroid known as 3200 Phaethon, which was discovered in 1982. The shower runs annually from December 7-17. The waning crescent moon will be no match for the Geminids this year. The skies should still be dark enough for an excellent show. Meteors will radiate from the constellation Gemini, but can appear anywhere in the sky.

Discover the full list of 10 things to know about our solar system this week HERE.

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8 years ago

Tornado Recovery Underway at Michoud Assembly Facility

Teams at our Michoud Assembly Facility in New Orleans worked overnight and are continuing Wednesday with assessment and recovery efforts following a tornado strike at the facility Tuesday at 11:25 a.m. CST. All 3,500 employees at the facility have been accounted for, with five sustaining minor injuries.

Teams worked through the night on temporary repairs to secure the perimeter fencing and provide access for the essential personnel through the main gate. Approximately 40 to 50 percent of the buildings at Michoud have some kind of damage; about five buildings have some form of severe damage.

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Approximately 200 parked cars were damaged, and there was damage to roads and other areas near Michoud.

Tornado Recovery Underway At Michoud Assembly Facility

“The entire NASA family pulls together during good times and bad, and the teams at the Michoud Assembly Facility are working diligently to recover from the severe weather that swept through New Orleans Tuesday and damaged the facility,” said acting NASA Administrator Robert Lightfoot. “We are thankful for the safety of all the NASA employees and workers of onsite tenant organizations, and we are inspired by the resilience of Michoud as we continue to assess the facility’s status.”

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Teams will reassess the condition of the Vertical Assembly Center (VAC), as the initial examination revealed some electrical damage to its substation. The VAC is used to weld all major pieces of hardware for the core stage of the Space Launch System. The most recently welded part was removed from the facility last week.

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The team has prioritized completing the assessment at the site’s main manufacturing building for the Space Launch System and Orion spacecraft flight hardware so power can be restored in phases and temporary protection put in place to shield hardware from any further inclement weather.

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6 years ago

Global Temperature by the Numbers

The Year

4th Hottest

2018 was the fourth hottest year since modern recordkeeping began. NASA and the National Oceanic and Atmospheric Administration work together to track temperatures around the world and study how they change from year to year. For decades, the overall global temperature has been increasing.

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Over the long term, world temperatures are warming, but each individual year is affected by things like El Niño ocean patterns and specific weather events.

1.5 degrees

Globally, Earth’s temperature was more than 1.5 degrees Fahrenheit warmer than the average from 1951 to 1980.

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The Record

139 years

Since 1880, we can put together a consistent record of temperatures around the planet and see that it was much colder in the late-19th century. Before 1880, uncertainties in tracking global temperatures were too large. Temperatures have increased even faster since the 1970s, the result of increasing greenhouse gases in the atmosphere.

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Five Hottest

The last five years have been the hottest in the modern record.

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6,300 Individual Observations

Scientists from NASA use data from 6,300 weather stations and Antarctic research stations, together with ship- and buoy-based observations of sea surface temperatures to track global temperatures.

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The Consequences

605,830 swimming pools

As the planet warms, polar ice is melting at an accelerated rate. The Greenland and Antarctic ice sheets lost about 605,830 Olympic swimming pools (400 billion gallons) of water between 1993 and 2016.

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8 inches

Melting ice raises sea levels around the world. While ice melts into the ocean, heat also causes the water to expand. Since 1880, sea levels around the world have risen approximately 8 inches.

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71,189 acres burned

One symptom of the warmer climate is that fire seasons burn hotter and longer. In 2018, wildfires burned more than 71,189 acres in the U.S. alone.

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46% increase in CO2 levels

CO2 levels have increased 46 percent since the late 19th Century, which is a dominant factor causing global warming.

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4 years ago

Black Holes: Seeing the Invisible!

Black holes are some of the most bizarre and fascinating objects in the cosmos. Astronomers want to study lots of them, but there’s one big problem – black holes are invisible! Since they don’t emit any light, it’s pretty tough to find them lurking in the inky void of space. Fortunately there are a few different ways we can “see” black holes indirectly by watching how they affect their surroundings.

Black Holes: Seeing The Invisible!

Speedy stars

If you’ve spent some time stargazing, you know what a calm, peaceful place our universe can be. But did you know that a monster is hiding right in the heart of our Milky Way galaxy? Astronomers noticed stars zipping superfast around something we can’t see at the center of the galaxy, about 10 million miles per hour! The stars must be circling a supermassive black hole. No other object would have strong enough gravity to keep them from flying off into space.

Black Holes: Seeing The Invisible!

Two astrophysicists won half of the Nobel Prize in Physics last year for revealing this dark secret. The black hole is truly monstrous, weighing about four million times as much as our Sun! And it seems our home galaxy is no exception – our Hubble Space Telescope has revealed that the hubs of most galaxies contain supermassive black holes.

Shadowy silhouettes

Technology has advanced enough that we’ve been able to spot one of these supermassive black holes in a nearby galaxy. In 2019, astronomers took the first-ever picture of a black hole in a galaxy called M87, which is about 55 million light-years away. They used an international network of radio telescopes called the Event Horizon Telescope.

Black Holes: Seeing The Invisible!

In the image, we can see some light from hot gas surrounding a dark shape. While we still can’t see the black hole itself, we can see the “shadow” it casts on the bright backdrop.

Shattered stars

Black holes can come in a smaller variety, too. When a massive star runs out of the fuel it uses to shine, it collapses in on itself. These lightweight or “stellar-mass” black holes are only about 5-20 times as massive as the Sun. They’re scattered throughout the galaxy in the same places where we find stars, since that’s how they began their lives. Some of them started out with a companion star, and so far that’s been our best clue to find them.

Black Holes: Seeing The Invisible!

Some black holes steal material from their companion star. As the material falls onto the black hole, it gets superhot and lights up in X-rays. The first confirmed black hole astronomers discovered, called Cygnus X-1, was found this way.

If a star comes too close to a supermassive black hole, the effect is even more dramatic! Instead of just siphoning material from the star like a smaller black hole would do, a supermassive black hole will completely tear the star apart into a stream of gas. This is called a tidal disruption event.

Making waves

But what if two companion stars both turn into black holes? They may eventually collide with each other to form a larger black hole, sending ripples through space-time – the fabric of the cosmos!

Black Holes: Seeing The Invisible!

These ripples, called gravitational waves, travel across space at the speed of light. The waves that reach us are extremely weak because space-time is really stiff.

Three scientists received the 2017 Nobel Prize in Physics for using LIGO to observe gravitational waves that were sent out from colliding stellar-mass black holes. Though gravitational waves are hard to detect, they offer a way to find black holes without having to see any light.

We’re teaming up with the European Space Agency for a mission called LISA, which stands for Laser Interferometer Space Antenna. When it launches in the 2030s, it will detect gravitational waves from merging supermassive black holes – a likely sign of colliding galaxies!

Black Holes: Seeing The Invisible!

Rogue black holes

So we have a few ways to find black holes by seeing stuff that’s close to them. But astronomers think there could be 100 million black holes roaming the galaxy solo. Fortunately, our Nancy Grace Roman Space Telescope will provide a way to “see” these isolated black holes, too.

Black Holes: Seeing The Invisible!

Roman will find solitary black holes when they pass in front of more distant stars from our vantage point. The black hole’s gravity will warp the starlight in ways that reveal its presence. In some cases we can figure out a black hole’s mass and distance this way, and even estimate how fast it’s moving through the galaxy.

For more about black holes, check out these Tumblr posts!

⚫ Gobble Up These Black (Hole) Friday Deals!

⚫ Hubble’s 5 Weirdest Black Hole Discoveries

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3 years ago

Stars Make Firework Supplies!

The next time you see fireworks, take a moment to celebrate the cosmic pyrotechnics that made them possible. From the oxygen and potassium that help fireworks burn to the aluminum that makes sparklers sparkle, most of the elements in the universe wouldn’t be here without stars.

From the time the universe was only a few minutes old until it was about 400 million years old, the cosmos was made of just hydrogen, helium and a teensy bit of lithium. It took some stellar activity to produce the rest of the elements!

Stars Make Firework Supplies!

Stars are element factories

Even after more than 13 billion years, the hydrogen and helium that formed soon after the big bang still make up over 90 percent of the atoms in the cosmos. Most of the other elements come from stars.

Stars Make Firework Supplies!

Stars began popping into the universe about 400 million years after the big bang. That sounds like a long time, but it’s only about 3% of the universe’s current age!

Our Nancy Grace Roman Space Telescope will study the universe’s early days to help us learn more about how we went from a hot, soupy sea of atoms to the bigger cosmic structures we see today. We know hydrogen and helium atoms gravitated together to form stars, where atoms could fuse together to make new elements, but we're not sure when it began happening. Roman will help us find out.

Stars Make Firework Supplies!

The central parts of atoms, called nuclei, are super antisocial – it takes a lot of heat and pressure to force them close together. Strong gravity in the fiery cores of the first stars provided just the right conditions for hydrogen and helium atoms to combine to form more elements and generate energy. The same process continues today in stars like our Sun and provides some special firework supplies.

Carbon makes fireworks explode, helps launch them into the sky, and is even an ingredient in the “black snakes” that seem to grow out of tiny pellets. Fireworks glow pink with help from the element lithium. Both of these elements are created by average, Sun-like stars as they cycle from normal stars to red giants to white dwarfs.

Eventually stars release their elements into the cosmos, where they can be recycled into later generations of stars and planets. Sometimes they encounter cosmic rays, which are nuclei that have been boosted to high speed by the most energetic events in the universe. When cosmic rays collide with atoms, the impact can break them apart, forming simpler elements. That’s how we get boron, which can make fireworks green, and beryllium, which can make them silver or white!

Stars Make Firework Supplies!

Since massive stars have even stronger gravity in their cores, they can fuse more elements – all the way up to iron. (The process stops there because instead of producing energy, fusing iron is so hard to do that it uses up energy.)

That means the sodium that makes fireworks yellow, the aluminum that produces silver sparks (like in sparklers), and even the oxygen that helps fireworks ignite were all first made in stars, too! A lot of these more complex elements that we take for granted are actually pretty rare throughout the cosmos, adding up to less than 10 percent of the atoms in the universe combined!

Fusion in stars only got us through iron on the periodic table, so where do the rest of our elements come from? It’s what happens next in massive stars that produces some of the even more exotic elements.

Stars Make Firework Supplies!

Dying stars make elements too!

Once a star many times the Sun’s mass burns through its fuel, gravity is no longer held in check, and its core collapses under its own weight. There, atoms are crushed extremely close together – and they don’t like that! Eventually it reaches a breaking point and the star explodes as a brilliant supernova. Talk about fireworks! These exploding stars make elements like copper, which makes fireworks blue, and zinc, which creates a smoky effect.

Something similar can happen when a white dwarf star – the small, dense core left behind after a Sun-like star runs out of fuel – steals material from a neighboring star. These white dwarfs can explode as supernovae too, spewing elements like the calcium that makes fireworks orange into the cosmos.

Stars Make Firework Supplies!

When stars collide

White dwarfs aren’t the only “dead” stars that can shower their surroundings with new elements. Stars that are too massive to leave behind white dwarfs but not massive enough to create black holes end up as neutron stars.

If two of these extremely dense stellar skeletons collide, they can produce all kinds of elements, including the barium that makes fireworks bright green and the antimony that creates a glitter effect. Reading this on a phone or computer? You can thank crashing dead stars for some of the metals that make up your device, too!

Stars Make Firework Supplies!

As for most of the remaining elements we know of, we've only seen them in labs on Earth so far.

Sounds like we’ve got it all figured out, right? But there are still lots of open questions. Our Roman Space Telescope will help us learn more about how elements were created and distributed throughout galaxies. That’s important because the right materials had to come together to form the air we breathe, our bodies, the planet we live on, and yes – even fireworks!

So when you’re watching fireworks, think about their cosmic origins!

Learn more about the Roman Space Telescope at: https://roman.gsfc.nasa.gov/

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