In a landmark achievement, astronomers have identified a super-Earth exoplanet only 18 light-years away that meets all the criteria they’ve been seeking for the past 20 years in their quest for ...

A newly identified Earth-sized exoplanet with a year-long orbit may lie near its star’s habitable zone, but extreme cold could limit its chances of hosting liquid water.

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Alexander Venner picked his way by hand through the data collected by a now-retired NASA telescope called Kepler, which examined the sky for exoplanets ...

— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...

Astronomers have identified a new chilly Earth-like planet Up Next. How do UK weather warnings work? Video, 00:01:47How do UK ...

Astronomers are on a constant search for life out in the universe and a big part of that search is finding planets where life can even form. But for a while scientists have been getting repeating ...

The question of whether Earth is alone in harboring life has captivated humanity for millennia. In recent years, scientists have turned to Earth-like planets in other solar systems that may show the ...