Elon Musk is putting his dreams of colonizing Mars on hold and said his SpaceX rocket company will instead focus on building a city on the moon.

There are substantial technical, political, and financial obstacles to starting the colonization of Mars within the next few decades. SpaceX is farther along than most toward this ambitious goal.

SpaceX’s development of Starship marks a pivotal step in realizing Elon Musk’s long-standing ambition to colonize Mars. Exploring the motivations behind this audacious project and the technological ...

Musk’s announcement comes as NASA plans to send four astronauts around the Moon on a crewed flyby in the Artemis II mission ...

When Philip K. Dick imagined artificial beings in his book "Do Androids Dream of Electric Sheep," the question was whether machines could think and feel like humans. Today, NASA is posing a related, ...

Musk will discuss progress and next steps toward building a human presence on the Red Planet ahead of Starship’s ninth test flight today. Reading time 3 minutes Update: May 27, 1:21 p.m ET: SpaceX has ...

Mars is often portrayed as humanity’s backup planet, but this video challenges that idea head-on. From radiation and dust ...