New reconstructions based on the skeletons of two sisters who lived in a prehistoric mining community in what is now the Czech Republic show what they likely looked like and wore.

Giant, ridge-like structures of methane ice, known as "bladed terrain," may be much more abundant along Pluto's equator than previously realized, a new study suggests.

Telescopes have come a long way since the first one was invented in 1608. So what's the most powerful telescope operating ...