Earth's land/water balance might be a rarity in the Universe.
The physics of light is a lot stranger than you might think.
This exoplanet is truly alien.
They’re 300 million light-years away, but could have big implications here on Earth.
It produced more energy than all of the stars in its galaxy combined.
These stars are the hottest and most massive of their kind.
They were looking at just the right place at just the right time.
Space will make you feel really, really small.
Here’s how astronomers determine the distance between objects in space.
A new study has rekindled an old debate on Earth’s cosmic companion.
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