Earth is teeming with life, but as of now, life has never been found anywhere else, but new observations hint at life on far-away K2-18 b.
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Stephen Hawking might be one of the most recognizable names in astrophysics, but he also had quite a few thoughts on how the world might end.
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A mere 48 light-years from Earth in the constellation Ophiuchus is an exoplanet that has been defying scientists attempts to understand it.
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No one can say with any certainty when the end of the world will come, but it is possible to give a general description of what it may look like.
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Space flight is a tricky thing, especially when you consider how to provide all the necessities of life, particularly waste disposal.
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The moon is intimately familiar to most people simply because it's a constant in the night sky, but its interior is more of a mystery to us.
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Being the furthest planet from Earth, we don't know much about Neptune, but recent observations have revealed something glowing in its sky.
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Most people don't spend much time thinking about space weather, but a strong geomagnetic storm has the power to bring the world to a standstill.
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Not all discoveries are the work of scientists and explorers. Sometimes it's just a guy out in the woods looking for a bit of gold.
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Despite its reputation, outer space is far from empty, and the region around our planet is particularly riddled with space debris.
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There's about to be a new star in the sky, but this nova won't be here for long, and won't be coming back for a very long time.
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Most people assume that the Big Bang was the beginning of all things, but current scientific models point to another cosmic origin.
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We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there are.
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Space is a big place and there's lots of strange stuff out there, but scientists aren't quite sure where these massive space bubbles came from.
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No one has been back to the moon for over 50 years, but the reasons why are multifaceted and not obvious at first glance.
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While space travel seems like a thrilling endeavor, it does come with its drawbacks, sometimes in the form of permanent damage to astronauts' minds and bodies.
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As Earth's ever-present celestial companion, the moon exerts a constant influence on our planet, and its disappearance would be a massive shock to all life.
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We don't have to worry about the death of the sun any time soon, but when it does happen, will the Earth be able to survive?
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The Sun's activity typically peaks at solar maximum, but there's an even more dangerous stage it could enter, and with potentially dire consequences.
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Life is tenacious and the universe is vast, so some are confident that extraterrestrial life is hiding out there. These worlds are the top contenders.
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Stephen Hawking was one of the greatest minds of our time, that's why his predictions for the potential end of the world can be so unsettling.
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Nobody knows how life began on Earth, but some tantalizing clues from an asteroid suggest it might not have started here.
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Total eclipses are one of the most majestic natural phenomena you can witness, but thanks to a quirk of celestial mechanics, they won't be around forever.
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On a dark and clear night, the sky can seem filled with stars, some shining brighter than others. But a few of those bright objects aren't actually stars.
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Strange metallic rocks have been falling from the sky for millennia, and sometimes those rocks are turned into surprising items.
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Life in space is very different from life on Earth; that much is pretty obvious. But what does the regular routine of an astronaut actually look like?
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The Curiosity rover has been carrying out its mission on Mars for many years, and it's made some pretty cool discoveries. Here are a few of them.
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