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

Artist's rendering of a potentially habitable super-Earth orbiting a star called HD 20794.Illustration credit: Gabriel Pérez Díaz, SMM (IAC) The ...

Before its mission came to an end, the Blue Ghost lander captured one more incredible view of sunset seen from the moon.The ...

A new world has just been found orbiting a Sun-like star only 20 light-years away, and it could be one of the most promising ...

Scientists have unearthed facial bones that may belong to a previously unknown human species. The bones, nicknamed "Pink," ...

Life is tenacious and the universe is vast, so some are confident that extraterrestrial life is hiding out there. These worlds are the top contenders.

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, ...

Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

But today Mars is cold and dry, with most water now located below the surface. Understanding how much water is stored offers critical information for energy exploration, as well as life ...

Scientists may have solved mystery of Mars' red color Mars' surface is covered by iron oxide minerals in the dust. One of those minerals is ferrihydrite, an iron oxide, which is most responsible ...

Because of the absence of liquid water on Mars’ surface today, those rusty red minerals were thought to arise from dry iron oxides present in the dust, such as hematite. But new analysis of ...