Astronomers have identified a super-Earth orbiting a Sun-like star just 20 light-years away, making it one of the closest and most promising candidates for studying Earth-like atmospheres. The planet, ...

The substance can contain up to 1.5 percent water, and if the ringwoodite under the surface has just one percent water in its ...

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

The building blocks of life on Earth may have been fueled by tiny sparks hopping between water droplets.

Named HD 20794 D, the newly discovered exoplanet orbits a star similar to the Sun, and researchers believe it may be able to sustain liquid water ... years away from Earth, raising the ...

With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly ...