Nevada offers so much more than glittering casinos and neon lights—venture beyond the tourist hotspots and you'll discover a ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

A scientist argued that a Viking lander experiment in 1976 detected microbial life on Mars and urged NASA to repeat the tests before future missions. We asked retired astronauts about their favorite ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

Ancient shoreline features hint that water on Mars once formed a vast ocean. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts to collect Perseverance rover samples that could contain evidence of alien ...

The red planet was half blue, according to space scientists. A research team using images from cameras on Mars-orbiting spacecraft say it was a "blue planet" around three billion years ago – with an ...

NASA visualization that suggests an ocean once covered the surface of Mars. (NASA Goddard via SWNS) By Dean Murray The red planet was half blue, according to space scientists. A research team using ...

When some scientists and conspiracy theorists saw the strange trajectory of the space object 3I/ATLAS, some of them thought one thing: aliens. With a bizarre shape, an unusually precise trajectory, ...