When a meteor flashes across the night sky, it’s more than a beautiful streak of light. It’s a delivery from deep space—an ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Tryptophan, an essential amino acid, has been discovered on asteroid Bennu, suggesting that asteroids may have delivered ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Far beyond Neptune, at the far outer rim of our Solar System, astronomers have spotted what looks like a hidden “structure” ...

American space agency NASA readies the Nancy Grace Roman Space Telescope for integration, launch could come as soon as next ...

Scientists combine observations from Mars missions to get the clearest and most accurate track of 3I/Atlas so far.

Currently there is a third “interstellar interloper” now passing through the solar system designated as 3i/ATLAS, for the ...

About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world with enough force to melt vast portions of its mantle and scatter a huge ...