A bigger Earth also means bigger problems.
But a small one could still cause a lot of damage.
"The Moon's atmosphere was like a hard-partying rock star."
NASA just discovered a manmade space bubble around earth.
Terraforming Mars: Turning the Red Planet green -- this is how we could do it.
"We've failed....zero prospect of recovery."
They’re hoping to find clues to help in our hunt for alien life.
The Earth's magnetic field makes life possible by shielding us from solar wind.
Stephen Hawking has a suggestion.
SpaceX on the Moon, the Oldest Fossils on Earth, a Cryogenic Breakthrough, and More.
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