The classic picture of Jupiter's great rocky core might be entirely wrong.
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65 million years ago, a massive asteroid struck Earth. Not only did Jupiter not stop it, but it probably caused the impact itself.
On Earth, microbial growth is common in lava tubes no matter the location and climate, whether it’s ice-volcano interactions in Iceland or hot, sand-floored lava tubes in Saudi Arabia.
The outer planets' clouds hide the weirdness within.
In our Solar System, even the two brightest planets frequently align in our skies. But only rarely is it spectacularly visible from Earth.
While Saturn and its moons all appear faint and cloudy to JWST, Saturn's rings are the star of the show. Here's the big scientific reason.
The secret ingredient is violence, and it just might indicate that "moonmoons" aren't as uncommon as most astronomers think.
Instead of worshipping Yahweh, the devotees were perhaps dedicated to Mars and Jupiter.
Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
There's a limit to how large planets can be, and it's only about double the radius of Jupiter. At least, so far.
Mercury, Venus, and Mars are all uni-plate planets, and may always have been. Here's what's known about why Earth, uniquely, has plate tectonics.
In all of human history, only 5 spacecraft have had the right trajectory to exit the Solar System. Will they ever catch Voyager 1?
Jupiter's atmosphere is hotter than it should be, and now we know why.
2023 will see the launch of new rockets, the return of OSIRIS-REx, and a mission to Jupiter that could help us find extraterrestrial life.
Jupiter's mysterious auroral events are caused by vibrating waves of plasma.
The giant impact theory suggests our Moon was formed from proto-Earth getting a Mars-sized strike. An exoplanet system shows it's plausible.
From black holes to dark energy to chances for life in the Universe, our cosmic journey to understand it all is just getting started.
All across the Universe, planets come in a wide variety of sizes, masses, compositions, and temperatures. And most have rain and snow.
A newly discovered “ultrahot Jupiter” has the shortest orbit of any known gas giant.
Some microbes can withstand Earth's most inhospitable corners, hinting that life may be able to survive similarly extreme conditions on other worlds.
Newton thought that gravitation would happen instantly, propagating at infinite speeds. Einstein showed otherwise; gravity isn't instant.
Even with all the recent impacts we've seen, it might be more "foe" than "friend" to us.
Since the time of Galileo, Saturn's rings have remained an unexplained mystery. A new idea may have finally solved the longstanding puzzle.
It could cut the time needed to reach Mars in half.
How can we understand mysterious planets like Jupiter? Use giant lasers!
Individual space telescopes, like Hubble and JWST, revolutionized our knowledge of the Universe. What if we had an array of them, instead?
What kind of object will you form? What will its fate be? How long will a star live? Almost everything is determined by mass alone.
Nearly 200 orbital launches are scheduled for 2022.
NASA is creating a planet habitability index, and Earth may not be at the top. With our current data, ranking habitability is guesswork.
Science fiction movies capture a classic human flaw: getting the future mostly wrong.