On Earth, deep-sea vents may have given rise to the planet’s first life. But nothing of the sort seems to be happening at the ...

Frozen crystals of hydrogen cyanide, a poisonous substance, may have been essential to life on Saturn’s moon Titan, ...

For decades, scientists have tried to turn the question of alien life from late-night speculation into something you can ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

There are also some other rarer, even more spectacular types of lightning: ...

Exceptionally preserved fossils from the Ediacaran period challenge what scientists thought was possible in sandstone. In the fossil record, creatures without hard shells or skeletons, such as ...

Some animals on Earth look so unusual that they appear almost alien. Their shapes, movements, and survival strategies challenge familiar ideas of what life should look like. Scientists study these ...

The origin of life is surely one of the most important questions in biology. How did inanimate molecules give rise to the ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.