A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Mars has a thin atmosphere of carbon dioxide, endless expanses of dusty landscape, and about one-third of Earth's gravity.

The Mars Sample Return mission has been ranked as the highest priority by planetary scientists, who hope to find signs of ancient life on Mars.

However, NASA isn't sure how to get these samples back to Earth for analysis. The original Mars Sample Return Program ... a major program overhaul, Live Science's sister site Space.com reported.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Two new potential ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

NASA has plans to launch the first deep space station for humans to live long-term. Is it a necessary step to Mars?

Stargazers will be treated to a dazzling six-planet "alignment" this January.

The Mars Sample Return effort was billions of dollars over budget and not expected to return to Earth with its samples until 2040. By Kenneth Chang Last year, Kenneth Chang wrote about a Martian ...