In just 10 seconds, its star became 1,000 times brighter.
Freaked-out people are largely limited to fiction, according to a new study.
Oxygen isn't the only air life breathes.
ExTrA is no ordinary planet hunter.
Could frozen planets host hardy alien life under the polar ice?
If we want to find alien life, we shouldn't look for planets like our own.
This could point to space as the place of origin for life on Earth.
These extremophiles can survive on air alone.
Life was small — until it wasn't.
They will sample water to see if the world may host extraterrestrial life.
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