Alien Worlds
The Massive Remnants of an Alien World Are Hidden Near the Earth's Core, Study Proposes
A new study suggests that an alien world that smashed into infant Earth and created the Moon might have left vast remains inside our planet.
Scientists Discovered an 'Improbable' World That Shouldn't Exist
This Neptune-sized exoplanet, which inexplicably exists in an ultrahot 'Neptune desert,' could provide researchers with answers they've been seeking for years.
The Plan to Seed Life on Alien Planets
The 50th anniversary of "Earthrise" is the perfect opportunity to think about sending Earth's life to the stars.
This Alien World Is Evaporating Faster Than Any Known Planet
“In only a few billion years from now, half of the planet may be gone.”
Scientists Discover ‘Super-Earth’ That’s Only Six Light Years Away
Astronomers have been looking for exoplanets around Barnard’s Star for decades. Now, they’ve finally spotted one.
Explore Distant Exoplanets With These NASA Simulations
Scientists have discovered thousands of alien worlds beyond the solar system. Here’s what some of them might look like on the surface.
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