Six hundred and thirty-five light years away from Earth, there is a world that seems to promise something almost unimaginable: a planet covered in a vast liquid ocean, where survival might actually be ...

The Kepler mission has confirmed its first potentially habitable world, a planet 600 light-years from Earth in a 289-day orbit around a smaller, cooler version of our sun. The planet is a "super-Earth ...

The planet, shown here in an artist's conception, circles its host star in 290 days Astronomers have confirmed the existence of a nearly Earth-sized planet in the "habitable zone" around a star not ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...

The news that NASA's Kepler mission has confirmed that Kepler 22-b is the best hope for future human habitation has caused near global excitement. Twice the size of Earth with a temperature of around ...

Astronomers have confirmed the existence of an Earth-like world orbiting a star like our Sun in its "habitable zone". The planet, Kepler 22-b, lies about 600 light-years away and is about 2.4 times ...

This week astronomers have announced the existence of a planet discovered to be in human livable range of star not unlike our sun, with a size 2.4 times that of our Earth and a temperature of ...

The planet, shown here in an artist's conception, circles its host star in 290 days Astronomers have confirmed the existence of a nearly Earth-sized planet in the "habitable zone" around a star not ...

The planet, shown here in an artist's conception, circles its host star in 290 days Astronomers have confirmed the existence of a nearly Earth-sized planet in the "habitable zone" around a star not ...