How Will The Audio Feed From Perseverance Make Its Way Back To Earth?

Say hello to the Saturn Nebula 👋

Garden-variety stars like the Sun live fairly placid lives in their galactic neighborhoods, casually churning out heat and light for billions of years. When these stars reach retirement age, however, they transform into unique and often psychedelic works of art. This Hubble Space Telescope image of the Saturn Nebula shows the result, called a planetary nebula. While it looks like a piece of wrapped cosmic candy, what we see is actually the outer layers of a dying star.

Stars are powered by nuclear fusion, but each one comes with a limited supply of fuel. When a medium-mass star exhausts its nuclear fuel, it will swell up and shrug off its outer layers until only a small, hot core remains. The leftover core, called a white dwarf, is a lot like a hot coal that glows after a barbecue — eventually it will fade out. Until then, the gaseous debris fluoresces as it expands out into the cosmos, possibly destined to be recycled into later generations of stars and planets.

Using Hubble’s observations, scientists have characterized the nebula’s composition, structure, temperature and the way it interacts with surrounding material. Studying planetary nebulas is particularly interesting since our Sun will experience a similar fate around five billion years down the road.

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A Wider Set of Eyes on the Universe

After years of preparatory studies, we are formally starting an astrophysics mission designed to help unlock the secrets of the universe. 

Introducing…

the Wide Field Infrared Survey Telescope, aka WFIRST.

With a view 100 times bigger than that of our Hubble Space Telescope, WFIRST will help unravel the secrets of dark energy and dark matter, and explore the evolution of the cosmos. It will also help us discover new worlds and advance the search for planets suitable for life.

WFIRST is slated to launch in the mid-2020s. The observatory will begin operations after traveling about one million miles from Earth, in a direction directly opposite the sun.

Telescopes usually come in two different “flavors” - you have really big, powerful telescopes, but those telescopes only see a tiny part of the sky. Or, telescopes are smaller and so they lack that power, but they can see big parts of the sky. WFIRST is the best of worlds.

No matter how good a telescope you build, it’s always going to have some residual errors. WFIRST will be the first time that we’re going to fly an instrument that contains special mirrors that will allow us to correct for errors in the telescope. This has never been done in space before!

Employing multiple techniques, astronomers will also use WFIRST to track how dark energy and dark matter have affected the evolution of our universe. Dark energy is a mysterious, negative pressure that has been speeding up the expansion of the universe. Dark matter is invisible material that makes up most of the matter in our universe.

Single WFIRST images will contain over a million galaxies! We can’t categorize and catalogue those galaxies on our own, which is where citizen science comes in. This allows interested people in the general public to solve scientific problems.

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Tools of the Trade: How Parker Solar Probe Will Study the Sun

Our Parker Solar Probe will get closer to the Sun than any spacecraft has ever gone – it will fly right through the Sun's corona, part of the Sun's atmosphere.

This spacecraft is full of cutting-edge technology, from its heat shield down to its guidance and control systems. It also carries four suites of advanced instruments designed to study the Sun in a multitude of ways.  

1. Measuring particles

Two of Parker Solar Probe's instrument suites are focused on measuring particles – electrons and ions – within the corona.

One of these particle-measuring instrument suites is SWEAP (Solar Wind Electrons Alphas and Protons). SWEAP counts the most common particles in the solar wind – the Sun's constant outflow of material – and measures their properties, like velocity, density and temperature. Gathering this information about solar wind particles will help scientists better understand why the solar wind reaches supersonic speeds and exactly which part of the Sun the particles come from.

One instrument in the SWEAP suite is the Solar Probe Cup. Most of the instruments on Parker Solar Probe stay safe and cool in the shadow of the heat shield, but the Solar Probe Cup is one of the few that sticks out. That's so it can capture and measure particles streaming straight out from the Sun, and it had to go through some intense testing to get ready for this position in the Sun's incredibly hot corona.  

Credit: Levi Hutmacher/Michigan Engineering

The ISʘIS suite (pronounced EE-sis, and including the symbol for the Sun in its acronym) also measures particles. ISʘIS is short for Integrated Science Investigation of the Sun, and this instrument suite measures particles that move faster – and therefore have more energy – than the solar wind.

These measurements will help scientists understand these particles' lifecycles – where they came from, how they got to be traveling so fast (these particles can reach speeds more than half the speed of light!) and what path they take as they travel away from the Sun and into interplanetary space.

2. Taking pictures – but not of the Sun's surface.

WISPR (Wide-Field Imager for Parker Solar Probe) has the only two cameras on Parker Solar Probe – but they're not pointed directly at the Sun. Instead, WISPR looks out the side of the spacecraft, in the direction it's traveling, looking at the space Parker Solar Probe is about to fly through. From that vantage point, WISPR captures images of structures within the corona like coronal mass ejections, or CMEs. CMEs are clouds of solar material that occasionally explode from the Sun at millions of miles per hour. Because this solar material is magnetized, CMEs can trigger geomagnetic storms when they reach Earth – which, in turn, can cause effects like auroras and even, in extreme cases, power outages.  

Right now, our observations of events like these come from satellites orbiting near Earth, so WISPR will give us a whole new perspective. And, scientists will be able to combine WISPR's images with Parker Solar Probe's direct particle measurements to get a better idea of how these structures change as they travel.

3. Studying electric & magnetic fields

The FIELDS instrument suite is appropriately named: It's what scientists will use to study the electric and magnetic fields in the corona.

Electric and magnetic fields are key to understanding what happens, not only on the Sun, but throughout space, because they are the primary driver accelerating charged particles. In particular, a process called magnetic reconnection – when magnetic field lines explosively realign, sending particles rocketing away at incredible speeds – is thought to drive solar explosions, as well as space weather effects on Earth, like the aurora.

FIELDS measures electric and magnetic field at high time resolution, meaning it takes lots of measurements in a short amount of time, to track these processes and shed some light on the mechanics underlying the Sun's behavior. FIELDS' measurements are precisely synced up with those of the SWEAP suite (one of the sets of instruments studying particles) so that scientists can match up the immediate effects that electric and magnetic fields have on the material of the solar wind.

Parker Solar Probe launches summer 2018 on its mission to study the Sun. Keep up with the latest on the mission at nasa.gov/solarprobe or follow us on Twitter and Facebook.

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how are the glaciers doing ?

What specific area of space research most excites you? Could be something being explored currently, or something you would like to see work done on in the future.

My twin sister worked on genetics in graduate school, and she continues to research ideas in genetics. She comes up with a lot of great ideas for what we can study in space, especially now since genetics is a focus on the space station. I’m looking forward to continuing with the genetics experiments and seeing what we learn.

Water, Water Everywhere; We Track Drops to Drink!

When we think about what makes a planet habitable, we’re often talking about water. With abundant water in liquid, gas (vapor) and solid (ice) form, Earth is a highly unusual planet. Almost 70% of our home planet’s surface is covered in water!

But about 97% of Earth’s water is salty – only a tiny amount is freshwater: the stuff humans, pets and plants need to survive.

Water on our planet is constantly moving, and not just geographically. Water shifts phases from ice to water to vapor and back, moving through the planet’s soils and skies as it goes.

That’s where our satellites come in.

Look at the Midwestern U.S. this spring, for example. Torrential rain oversaturated the soil and overflowed rivers, which caused severe flooding, seen by Landsat.

Our satellites also tracked a years-long drought in California. Between 2013 and 2014, much of the state turned brown, without visible green.  

It’s not just rain. Where and when snow falls – and melts – is changing, too. The snow that falls and accumulates on the ground is called snowpack, which eventually melts and feeds rivers used for drinking water and crop irrigation. When the snow doesn’t fall, or melts too early, communities go without water and crops don’t get watered at the right time.

Even when water is available, it can become contaminated by blooms of phytoplankton, like cyanobacteria . Also known as blue-green algae, these organisms can make humans sick if they drink the water. Satellites can help track algae from space, looking for the brightly colored blooms against blue water.

Zooming even farther back, Earth’s blue water is visible from thousands of miles away. The water around us makes our planet habitable and makes our planet shine blue among the darkness of space.

Knowing where the water is, and where it’s going, helps people make better decisions about how to manage it. Earth’s climate is changing rapidly, and freshwater is moving as a result. Some places are getting drier and some are getting much, much wetter. By predicting droughts and floods and tracking blooms of algae, our view of freshwater around the globe helps people manage their water.

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NASA Spotlight: Astronaut Andrew Feustel

Andrew J. Feustel was selected by NASA in 2000. The Lake Orion, Michigan native has a Ph.D. in the Geological Sciences, specializing in Seismology, and is a veteran of three spaceflights. In 2009, Dr. Feustel served on space shuttle mission STS-125. That mission was the fifth and final mission to service the Hubble Space Telescope that improved the observatory’s capabilities through 2014! Feustel most recently served as Commander on the International Space Station from March 21 through October 4, 2018. In his free time, Dr. Feustel enjoys auto restoration, guitar, water and snow skiing and is a fan of automotive and motorcycle racing.  

He took some time from his job as a NASA astronaut to answer a few questions about his life and career! Enjoy:

While attending Oakland Community College, you worked as an auto mechanic. How does that job and the skills you learned relate to your job now as an astronaut?

I’ve often told people that I believe having this skillset is almost as important as my training in college and university. I relied on those skills almost every day in space and even on the ground while preparing for missions. That skillset has been really helpful in understanding how to maintain and repair equipment for spaceflight. In general, having those general skills of knowing how things fit together, what the structure is, and how things work, even without knowing anything about the particular item, is very helpful in life.

Has there ever been a time as a NASA Astronaut where you had to overcome self-doubt and if so, how did you?

Yes, probably the most impactful time I had to overcome self-doubt was on my very first mission as a rookie doing a spacewalk for the first time and having to make a repair on the Hubble Space Telescope. Since it was my first spacewalk, I didn’t know if I could do it and didn’t know how I would do. However, I had trained for that mission for three years and the training took over when I started the spacewalk. At that point, I didn’t focus on my self-doubt, I focused on my training and was able to carry out the tasks.

What are you most excited about for the upcoming Artemis Moon missions?

I am most excited about the possibility of humans establishing the ability to live off of our planet. To have the capability to exist on another surface. That, to me, is a start. Humans need that capability for us to live on the Moon then to go to Mars.

What did living in space teach you about community and teamwork?

Not just living in space, but working at NASA and training for space missions taught me a lot about community and teamwork. Living in space allows you to use the skills you learn about teamwork while training. While living in space you must rely on each other for everything. It’s important to recognize the value of working as a team. All of the astronauts have a very different mix of skills and that’s a great thing about the astronaut corps. Being successful and staying alive in space relies on community and teamwork.

What kind of impact did living and working in space have on how you view the Earth?

I am more aware of the fragility of our planet and species which is why humans should extend past the Earth. We are fragile as a planet and the Earth is vulnerable to the impacts of us living here. We cannot have zero impact on the planet, we will always have some impact, but the goal is to lessen the damage that we do to Earth to allow us to live here indefinitely if possible.

What or who inspired you to apply to be an astronaut?

I was inspired by reading the obituary of my great-great uncle. He was very successful in the utilities and railroad industry in the Midwest. Reading about his successes made me believe that I could do anything. I was also interested in space travel from a young age. I believed that I would be involved in the space industry. The motivation of understanding what family members had done before me really encouraged me to reach for my dreams and apply.

What book, movie, or show about space and/or astronauts is the most accurate? The least accurate? You wish was accurate?

I’m less concerned about the accuracy of space and space exploration portrayed in movies, but more interested with the creative thought behind them and I am fascinated with ideas and imagination of the people making these movies. Things portrayed as science fiction in the past become science fact in the future.

What's the most common misconception about astronauts / working at NASA?

The most common misconception about astronauts is that we go on spaceflights often. Over 95% of our job is spent working on the ground. People should come to this job because it’s important to space and space exploration. The job entails so much more than going into space yourself, but the good news is it’s all awesome. I have never been bored at my job. There are so many exciting parts of this work that contribute to NASA missions even if it doesn’t always mean being in space.

Can you share your favorite photo or video that you took in space?

My favorite photo is this one of Michigan and Canada. It captures my life – where I lived and everyone that I know and my family and friends – that’s where I consider home. It’s such a beautiful image.

That’s a wrap! Thank you Dr. Feustel for your time! 

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Excited about the #CountdownToMars? We've got you covered.

We've created a virtual Mars photo booth, 3D rover experience and more for you to put your own creative touch on wishing Perseverance well for her launch to the Red Planet! Check it out, HERE. 

Don’t forget to mark the July 30 launch date on your calendars! 

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Capturing Space Stories, One Click at a Time!

It’s World Photography Day!

To celebrate the occasion, we’re sharing photos from our photographers that chronicle what's making news across the agency - from launches and landings to important science announcements to images taken from the vantage point of space.

Take a look!

A Closer View of the Moon 

Posted to Twitter by European Space Agency astronaut Alexander Gerst, this image shows our planet's Moon as seen from the International Space Station. As he said in the tweet, "By orbiting the Earth almost 16 times per day, the #ISS crew travel the distance to the Moon and back – every day. #Horizons"

The International Space Station is the world's only orbital laboratory. An international partnership of space agencies provides and operates the elements of the station. The principals are the space agencies of the United States, Russia, Europe, Japan and Canada.

Photo Credit: NASA

Spacewalk Selfie

NASA astronaut Ricky Arnold took this selfie during the May 16, 2018, spacewalk to perform upgrades on the International Space Station, saying in a tweet "An amazing view of our one and only planet."

Arnold and fellow spacewalker Drew Feustel donned spacesuits and worked for more than six hours outside the station to finish upgrading cooling system hardware and install new and updated communications equipment for future dockings of commercial crew spacecraft.

Photo Credit: NASA

Preparing to Leave Earth

The mobile service tower at Space Launch Complex-3 is rolled back to reveal the United Launch Alliance Atlas-V rocket with NASA’s InSight spacecraft onboard, Friday, May 4, 2018, at Vandenberg Air Force Base in California. InSight, short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, is a Mars lander designed to study the "inner space" of Mars: its crust, mantle, and core. 

Photo Credit: NASA/Bill Ingalls

Launch Long Exposure

The United Launch Alliance Delta IV Heavy rocket is seen in this long exposure photograph as it launches NASA's Parker Solar Probe to touch the Sun, Sunday, Aug. 12, 2018 from Launch Complex 37 at Cape Canaveral Air Force Station, Florida. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona.  Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth.

Photo Credit: NASA/Bill Ingalls

Waving Farewell

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA waves farewell to family and friends as she and Soyuz Commander Sergey Prokopyev of Roscosmos and flight engineer Alexander Gerst of European Space Agency depart Building 254 for the launch pad a few hours before their launch, Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Auñón-Chancellor, Prokopyev, and Gerst launched aboard the Soyuz MS-09 spacecraft at 7:12am EDT (5:12pm Baikonur time) on June 6 to begin their journey to the International Space Station.

Photo Credit: NASA/Victor Zelentsov

Launching Humans to Space

The Soyuz MS-09 rocket is launched with Expedition 56 Soyuz Commander Sergey Prokopyev of Roscosmos, flight engineer Serena Auñón-Chancellor of NASA, and flight engineer Alexander Gerst of ESA (European Space Agency), Wednesday, June 6, 2018 at the Baikonur Cosmodrome in Kazakhstan. Prokopyev, Auñón-Chancellor, and Gerst will spend the next six months living and working aboard the International Space Station. 

Photo Credit: NASA/Joel Kowsky

Rethinking Aircraft Design

In an effort to improve fuel efficiency, NASA and the aircraft industry are rethinking aircraft design. Inside the 8’ x 6’ wind tunnel at NASA Glenn Research Center, engineers tested a fan and inlet design, commonly called a propulsor, which could use four to eight percent less fuel than today’s advanced aircraft.

Photo Credit: NASA/Rami Daud

Flying Observatory

SOFIA, the Stratospheric Observatory for Infrared Astronomy, is the largest airborne observatory in the world, capable of making observations that are impossible for even the largest and highest ground-based telescopes. During its lifetime, SOFIA also will inspire the development of new scientific instrumentation and foster the education of young scientists and engineers.

Photo Credit: NASA/SOFIA/Waynne Williams

Experimenting with Venus-like conditions

A close-up view of crystals that developed on materials exposed to conditions on Venus in NASA Glenn’s Extreme Environments Rig. This unique and world class ground-based test rig can accurately most simulate atmospheric conditions for any planet or moon in the solar system and beyond.

Photo Credit: NASA/Bridget Caswell

Honeycomb Close Up

A close-up view of 3-D printed honeycomb patterns made in NASA Glenn manufacturing lab using a method called binder jetting. The honeycomb structures can find use in several applications such as a strong core for lightweight sandwich panels, acoustic panels for noise attenuation and innovative cellular structures.

Photo Credit: NASA/Marvin Smith

To see even more photos of our space exploration efforts, visit us on Flickr: https://www.flickr.com/photos/nasahqphoto/.

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Spot the International Space Station

Right now, there are humans living and working off the Earth on the International Space Station. They orbit our planet from 250 miles above every 90 minutes, which means the crew sees 16 sunrises and sunsets every day.

If you’re in the right place, at the right time, the space station is visible to the naked eye. It looks like a fast-moving plane, only much higher and traveling thousands of miles an hour faster. The fact that it’s the third brightest object in the sky makes it easier to spot…if you know when to look up.

That’s where we can help! Our Spot the Station site allows you to enter your location and find out when the space station will be flying overhead. You can even sign up to receive alerts that will send you email or text messages to let you know when and where to look up.

Why is the space station visible? It reflects the light of the Sun, the same reason we can see the Moon. However, unlike the Moon, the space station isn’t bright enough to see during the day.

To find out when the space station is flying over your area, visit: http://spotthestation.nasa.gov/

Learn more about the International Space Station and the crew HERE.

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