As the planet closest to the Sun, Mercury has it rough. Not only is it the smallest planet in our solar system, but Mercury's ...

The core of the Red Planet may be filled with sulfur. New experiments have shown that the core of Mars formed much faster ...

NASA's Perseverance rover is digging deeper into Mars' geologic past as it begins grinding into rock surfaces to expose ...

Thick clay deposits on Mars hint at long-lived lakes that may have sheltered early life - and preserved clues beneath layers ...

On a clear night, the moon you gaze upon looks the same as it looked for the first humans that walked Earth—the same ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter. But we have 1,000 or so ...

Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were. Scientists now say the curious features that stretch for hundreds of meters down Martian slopes were ...

A groundbreaking discovery by NASA’s Curiosity Rover, featuring a surprisingly rare mineral called siderite, is not only ...

Life outside the Earth is one of the biggest "what if" in history, but NASA is trying to put a end to the discussion - or add more to it - with this new world.

The image, captured by NASA ’s Mars Odyssey orbiter, is the first of its kind: a volcano on the Red Planet seen on the ...

Scientists reveal that earthquakes generate electricity in quartz, explaining how enormous gold nuggets grow in deep rock ...