Artemis II astronauts are returning to Earth after a historic moon mission launching from Florida. What's next for NASA's lunar and Mars plans?

As our book club revisits Red Mars, Kim Stanley Robinson reflects on imagining a 2026 Mars mission — and how today’s ...

Scientists edge closer to answering Mars’ biggest question: Did life ever exist on the red planet? Here's the latest from two ...

Finding life on Mars might be closer than we thought. NASA’s Curiosity rover has yielded promising data from the Red Planet, ...

The conversation celebrated a small, but significant, step in an ambitious plan for missions to the moon and Mars that Mr. Trump had set early in his first term.

“We’ll be doing it again and then, next step, Mars!” Trump said, greeting the Artemis II crew after their splashdown on Friday.

Astronauts traveling to and from Mars would be bombarded with as much cosmic radiation as they’d get from a full-body CT scan about once a week for a year, researchers reported Thursday. That dose is ...

A new ISS study using mice reveals that Mars’ weaker gravity could cause significant muscle loss in astronauts, threatening mission performance and health. Researchers found that 0.33g, close to ...

Ahead of a potential April 1 launch of the Artemis II mission from Florida, here's what to know about NASA's plans to one day send humans to Mars.

Beyond Artemis II, human spaceflight missions will need longer expiration dates and grow-it-yourself options. Luckily, labs around the world are working on these menus—and invited National Geographic ...