At first, the universe was like a hot stew. Instead of carrots and potatoes, it had particles. As the soupy universe cooled, ...

Cyanobacteria, as they still exist today, were the first organisms to carry out photosynthesis and release oxygen. Produced in primeval oceans about 2.5 billion years ago, this oxygen accumulated in ...

A scientist wants to drug a piece of space rock to see if the universe has a mind of its own. Really.

Experts caution that low-quality, A.I.-generated videos on YouTube geared toward children often feature conflicting ...

Compared to previous theories, the current research emphasizes the complexity of the biological and chemical processes that brought about life.

When the supercontinent Pangea began to fragment around 200 million years ago during the Early Jurassic, it reshaped the face of the planet. Vast new oceans opened, continents drifted apart and the ...

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

A new paper in Monthly Notices of the Royal Astronomical Society argues the simplest answer may work: contact binaries like Arrokoth can form directly during the gravitational collapse of a dense ...

Sponges may be ancient, but their timeline has been murky. New research suggests the earliest sponges were soft and skeleton-free, explaining why their fossils don’t appear until much later. By ...

Comets are a trickier prospect. The first spots of direct evidence, collected in the 1990s by the Giotto spacecraft and later ...