In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

Learn how a newly discovered virus disrupts its host’s nucleus in ways that echo how complex cells may have formed billions ...

Complex life began to develop earlier, and over a longer span of time, than previously believed, a new study has revealed. The research sheds new light on the conditions needed for early organisms to ...

Life on Earth. Where did it come from? How long has it existed here? While we're still searching for the answers to one of those questions, scientists think they might have discovered the answer to ...

Life on Earth began simply. For billions of years, tiny microbes ruled the planet. Then, one day in deep time, something changed. Cells gained a nucleus, built inner compartments and learned to ...

Most scientists agree that complex life likely formed during the Ediacaran Period some 600 million years ago—right on the cusp of the well-known Cambrian Explosion. However, a new study suggests that ...

"These events can either be a catastrophe or the best thing that has happened to our planet, depending on what point of view you are taking." When you purchase through links on our site, we may earn ...

The origins of complex, nucleated cellular life – everything from amoebas to humans – may date back a lot further in Earth's history than we thought. A new study tracing the earliest steps toward ...

More than half a billion years ago on a frigid, ice-covered Earth, glaciers stirred up ingredients for complex life by bulldozing land minerals and then depositing them in the ocean, according to a ...

Scientists have discovered evidence that an isolated pocket of complex life may have evolved on Earth more than 2 billion years ago – only to go extinct and take another 1.5 billion years to evolve to ...