Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

In a series of experiments at Johns Hopkins University, Lily Zhao fired tiny samples of a microorganism with a room-sized gas ...

Humans were not designed for space. Ironically, because we insist on going there anyway, scientists now know from studying astronauts that the lack of Earth’s gravity can wreak health havoc, such as ...

Astronomers say a distant, sunlike star shows signs of a catastrophic planet-on-planet crash that may mirror the ancient impact that formed Earth's moon.

If you’ve spent your entire life looking at the night sky from a city or suburb, you’ve basically been watching the universe ...

When SpaceX CEO Elon Musk announced a pivot from Mars to the moon, one detail of his plan caused eyebrows to raise. Musk plans to build something called a mass driver on the lunar surface to deploy AI ...

NASA’s Mars Curiosity rover has been exploring a curious geological formation made up of ridges up to six feet in height for the last six months. Scientists theorize that the “boxwork” formations were ...

Elon Musk has repeatedly emphasized that no matter how financially successful SpaceX may be, the company will have failed in his eyes if the primary objective – the colonization of Mars – is not ...

On Monday night, someone placed a peculiar bet on the prediction market Kalshi. At 7:45 p.m. eastern time, a single trader put down nearly $100,000 on the claim that, by the end of December, the Trump ...

Editor's Note: The Question of the Week will return next Sunday. Last week I asked what you thought about Elon Musk's pivot away from Mars to concentrate more on establishibng a city on the moon. I ...

It's an age-old debate in space circles: Should humanity's first city on another world be built on the moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the moon as ...

In a Truth Social post, the U.S. president said his move was based on the "tremendous interest" in the subject, without providing additional details. Trump said the files will be related to ...