A pile of ancient arrowheads from southern Africa still holds traces of toxic plant residue, even after some 60,000 years.

A: Circumstantial evidence does not directly prove an element of the alleged misconduct, but provides information from which ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

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 ...

For two decades, astronomers have chased a cosmic ghost: ultra‑massive “monster stars” that theory said must have existed but ...

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 ...

Circumstantial evidence is in dire need of a public relations agency. Often described as weak and unconvincing, it is continually bashed by criminal defense attorneys as being synonymous with ...

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 ...

Get the latest federal technology news delivered to your inbox. Last month, the IRS released a study examining the feasibility of Direct File, an IRS-run electronic filing system for taxpayers. If ...