Astronomers who identified HD 20794 d say its proximity to its host star and orbital pattern suggest it could hold water.

Seventy-eight years ago, scientists created a unique sort of timepiece — named the Doomsday Clock — as a symbolic attempt to ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Earth,” dubbed HD 20794 d, boasts a mass six times that of our planet and resides within the star’s “habitable zone.” The ...

Earth’ planet that may be suitable for life - The exoplanet, which has been named HD 20794 d, orbits in the ‘habitable zone’ ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Today, with 8 billion humans on this planet, the few wealthy countries are extracting natural resources at alarming rates, ...

A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more ...

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

A planet that may support alien life has been discovered less than 20 light-years from Earth. The "promising" super-Earth - ...