The two-headed form, known as dicephaly, is caused by incomplete embryo separation. Although rare, this condition ...

The hunt for great new scoops in honor of National Ice Cream Day on Sunday was a sweet success.

From murderous mountains to boiling hot springs these are the world's most dangerous natural attractions, ranked.

As NASA reports, two astronomers working with raw Webb data the space agency periodically makes available to researchers, ...

The future of at least one of the U.S. LIGO observatories is in jeopardy as deep cuts to science programs are proposed by the ...

A gravitational wave has revealed the biggest black-hole merger ever recorded—so massive and extreme, it defies current astrophysical models. The clash formed a 225-solar-mass monster, possibly made ...