The threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes rush to track its course. But the chance of an impact is still quite slim.

NASA's Perseverance rover has been busy gathering bits of Mars — rock cores the size of chalk sticks, clusters of broken fragments no bigger than pencil erasers, and even grains of dust fine enough to ...

A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

NASA still views the moon as a stepping stone to Mars, even though Elon Musk has dismissed Earth's nearest neighbor as "a ...

The upcoming spring exhibition at San Francisco’s Exploratorium, opening Saturday, invites museum patrons to immerse ...

As Rocket Lab successfully scales, its business model should lead to a faster-than-expected breakeven during FY 2026. Click ...

Proponents of going to Mars see peril and opportunity in Elon Musk's close relationship with Trump. Experts say just getting ...

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

What makes NASA’s InSight different from past Mars missions? Instead of exploring the surface, this lander is studying the planet’s interior, searching for seismic activity (marsquakes) and measuring ...

Jumping workouts could help astronauts prevent the type of cartilage damage they are likely to endure during lengthy missions to Mars and the moon, a new Johns Hopkins University study suggests.

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...