I Read This Article When Answering A Question On Quotev And It’s Fascinating!
I read this article when answering a question on quotev and it’s fascinating!
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More Posts from Acosmicgeek and Others
Full Moon day!!!
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The search for another Earth is super cool even if it might never end lol
But like, Aliens.
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Are We Alone? How NASA Is Trying to Answer This Question.
One of the greatest mysteries that life on Earth holds is, “Are we alone?”
At NASA, we are working hard to answer this question. We’re scouring the universe, hunting down planets that could potentially support life. Thanks to ground-based and space-based telescopes, including Kepler and TESS, we’ve found more than 4,000 planets outside our solar system, which are called exoplanets. Our search for new planets is ongoing — but we’re also trying to identify which of the 4,000 already discovered could be habitable.
Unfortunately, we can’t see any of these planets up close. The closest exoplanet to our solar system orbits the closest star to Earth, Proxima Centauri, which is just over 4 light years away. With today’s technology, it would take a spacecraft 75,000 years to reach this planet, known as Proxima Centauri b.
How do we investigate a planet that we can’t see in detail and can’t get to? How do we figure out if it could support life?
This is where computer models come into play. First we take the information that we DO know about a far-off planet: its size, mass and distance from its star. Scientists can infer these things by watching the light from a star dip as a planet crosses in front of it, or by measuring the gravitational tugging on a star as a planet circles it.
We put these scant physical details into equations that comprise up to a million lines of computer code. The code instructs our Discover supercomputer to use our rules of nature to simulate global climate systems. Discover is made of thousands of computers packed in racks the size of vending machines that hum in a deafening chorus of data crunching. Day and night, they spit out 7 quadrillion calculations per second — and from those calculations, we paint a picture of an alien world.
While modeling work can’t tell us if any exoplanet is habitable or not, it can tell us whether a planet is in the range of candidates to follow up with more intensive observations.
One major goal of simulating climates is to identify the most promising planets to turn to with future technology, like the James Webb Space Telescope, so that scientists can use limited and expensive telescope time most efficiently.
Additionally, these simulations are helping scientists create a catalog of potential chemical signatures that they might detect in the atmospheres of distant worlds. Having such a database to draw from will help them quickly determine the type of planet they’re looking at and decide whether to keep observing or turn their telescopes elsewhere.
Learn more about exoplanet exploration, here.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Honestly I don’t really understand why they didn’t call the APOLLO missions the ARTEMIS missions! Artemis is the greek goddess of the moon, not Apollo xD
Dat rocket does look cool though. I prefer posting about astrophysics, but I’m having a lazy day and rockets are easy to find and cool to look at. Apologies for anyone expecting another post on stars or memes.
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NASA Attaches First of 4 RS-25 Engines to Artemis I Rocket Stage : Engineers and technicians at NASA’s Michoud Assembly Facility in New Orleans have structurally mated the first of four RS-25 engines to the core stage for NASA’s Space Launch System (SLS) rocket that will help power the first Artemis mission to the Moon. (via NASA)
Aw, now that’s a smart kitty
Also - what’s the meaning of life and death - good question. Cat please explain lol
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Upvote me so that I can post on r/science too.
In a sense cosmology contains all subjects because it is the story of everything, including biology, psychology and human history.
Peter Theodore Landsberg
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Accurate
Even though it’s possible the apple thing never happened.
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Thinking intensifies
Woah :O
COOOOOLLL
I’ve never gotten to see a full solar eclipse, just a partial one that happened a few years ago.
Maybe I’ll have better luck in the future?
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Traveling for 4 days, Just to See 30 Seconds of The Full Annular Eclipse! It Was worth All the Effort!
via reddit
So I actually did the calculations and the surface area of Jupiter could probably fit around 11,474,491,000,000 football fields.
Okay so I googled it and the radius of Jupiter is 43,441 miles. However, I’m going to convert that into meters, which’ll make that radius a cool 69,911,513 m. Next up I’ll plug that into the surface area of a sphere formula (A= 4πr^2) which will get us approximately 6.14 x 10^16 m^2 (or roughly 61,400,000,000,000,000 m^2).
Next, I found the area of one football field to be around 5,351 m^2. Dividing the surface area of Jupiter by the surface area of one football field, we can find out how many football fields will fit onto the surface of Jupiter. And that is 1.1474491 x 10^13. Calculating that, that will be 11,474,491,000,000 football fields (11 trillion or so). Oh boy.
For comparison’s sake, the universe is estimated to have AT MOST 2 trillion galaxies! Which means that Jupiter likely could fit more football fields than the universe has galaxies. Another example, there are an estimated billion trillion stars in the observable universe. Jupiter’s football fields account for half of the stars in our observable universe.
I actually tried to find out how many football fields were in the U.S. for comparison but I still can’t find a statistic.
But also that’s pretty hilarious xD
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No WaY
It’s easy to forget that thousands of comets, asteroids, and meteors are near us everyday. They seem like such a rarity.
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Cosmonaut Ivan Vagner obtained this image of the comet NEOWISE a few hours ago from the International Space Station. He says that the dust tail looks very good from there. It is worth enlarging the image.
via reddit
