American veteran Venus Williams says she would like to compete at the 2016 Rio Olympics. The 32-year-old and her sister Serena, 31, won the 2012 doubles gold in London. Serena, who won the singles ...

A land-ocean pattern like the one shown in this artist’s conception was used in a climate model to show how storm clouds could have shielded ancient Venus from strong sunlight. (Credit: NASA) Today ...

RIO DE JANEIRO (AP) — Venus Williams isn’t used to taking the court in doubles uncertain whether she can win. That’s why the four-time gold medalist sat in her changeover chair after an Olympic ...

The answer is a gigantic “hydraulic jump,” and researchers believe similar phenomena may occur on planets like Mars.

Venus may have had a shallow liquid-water ocean and habitable surface temperatures for up to two billion years of its early history, according to NASA computer modeling of the planet's ancient climate ...