Astronomer and citizen scientists find gigantic planet hidden in plain sight
Remarkable link between the number of supernovae and life on Earth discovered
Largest collection of free-floating planets found in the Milky Way
A young, sun-like star may hold warnings for life on Earth
Study suggests Sun is likely source of the Earth's water
Killer asteroids abound. NASA is ready to do something about it
NASA to deflect asteroid in first-ever test of 'planetary defense'
Researchers answer a century old question about the origin of life
Near-earth asteroid might be a lost fragment of the moon
Major endorsement for new space mission to find 'Earth 2.0'
NASA to deflect asteroid in test of 'planetary defense'
On ancient Earth, it never rained but it poured
Did the Earth tip on its side 84 million years ago?
Would nuking an incoming asteroid actually work? New study has the answer
A first for search and rescue from space
Physicists propose a new method for defending the Earth against cosmic impacts
Did Venus ever have oceans?
Research finds that inner solar system planets were formed through violent collisions
There's now a gas station in space
How many satellites are orbiting Earth?