We don’t entirely know when life arose on Earth, but there’s increasing evidence that it happened pretty quickly after the planet itself got started. Now, scientists have found some of the earliest ...

Researchers have combined physics and biology in a study that provides the first direct evidence explaining why we sleep. Viewing the brain like a biological computer whose resources are drained ...

Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang. In the first fleeting fraction of a second, the universe expanded ...

Former President Barack Obama’s spy chief and other top national security and law enforcement officials testified that they did not see direct evidence of Trump-Russia collusion, according to newly ...

The agency said that they had not found evidence of a specific incident that could have caused outbreak. U.S. intelligence agencies found no direct evidence that the COVID-19 pandemic stemmed from an ...