Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.

A spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole. The European and Japanese robotic ...

Artemis delays raise questions about NASA's 2027 moon landing goal. Can the US maintain its lead in space exploration?

NASA has plans to return humans to the moon with the Artemis mission—but Elon Musk’s preference for Mars could have influence ...

For example, he has rarely criticized NASA or its overall goal to return humans to the Moon through the Artemis Program.

Effective vision is required for a range of duties on the Moon, including moving around the surface and gathering samples.

Witness a lunar occultation of both Mars and the Pleiades; plus, Mars reaches opposition and Venus and Saturn sit close ...

From arachnid-like formations and mysterious blobs to an underground ocean and a giant volcano, here are our 10 favorite ...

Mars' snow is made of carbon dioxide ice, not water ice. During the Martian winter, temperatures can drop to as low as minus ...

Mars has a breathtaking winter wonderland near its south pole, where carbon dioxide ice forms dynamic patterns of dust and frost. Photographs of a 'winter wonderland' seen by Mars orbiters. This year, ...

it aims to not only explore but also establish a sustainable lunar base that could serve as a stepping stone for future Mars missions. The success of this ambitious endeavor hinges on overcoming the ...

All going well, the 38-year-old should reach his destination in early January, becoming the first ever disabled person to ski solo and unsupported to the South Pole. Just 51 people have completed ...