The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They are etched into a single, oddly speckled rock in an ancient riverbed, where ...

The discovery suggests that parts of Mars may once have supported tropical-like climates, complete with heavy, sustained rainfall.

At the height of the Cold War, US Air Force officials proposed a terrifying plan to help America demonstrate its superiority ...

Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you ...

What everyone agrees on is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. This issue ...

The Discovery A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars. Key Facts Scientists ...

The Perseverance rover is continuing its mission to find clues about the geological past of Mars. The rover’s main goals are ...

New findings from NASA's Perseverance rover have revealed evidence of wave-formed beaches and rocks altered by subsurface ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

BEIJING -- By studying the detection data of China's first Mars rover, Zhurong, Chinese geologists have found that the Martian surface had still exhibited significant aqueous activity approximately ...

A new set of simulations proposes an unexpected way ancient Mars could keep water around longer than you’d think, even when the planet stayed mostly cold. The key isn’t a warmer world, but a subtle ...

Mars may look quiet from a distance, but up close it is anything but still. Beneath its thin sky, dust storms roar, dust devils twist across the surface, and tiny grains of sand constantly rub against ...