The discovery boosts the chances of finding extraterrestrial life.

A new paper, published today in Science, outlines the discovery of a potentially Earth-like atmosphere surrounding a nearby ...

Science has discovered around 6,000 planets, and this is the first one, other than Earth, that is rocky and has an atmosphere ...

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

Scientists received data from the surface of Mars for the first time 50 years ago this week. NASA’s Viking 1 mission achieved ...

I’m a planetary scientist who was born the year of Sputnik’s launch. Over the course of my 40-year career, I’ve witnessed not one but at least five separate revolutions that fundamentally transformed ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could crater existing Red Planet research missions.

The current parade of planets, mistakenly called a planetary alignment by some, in the night sky shortly after sunset has been calculated as a few-times-a-century phenomenon by scientists. According ...

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With Mercury joining the show, all seven of Earth’s celestial neighbors will be present at dusk this week. By Katrina Miller Astute skywatchers may have already seen the striking line of planets ...