The upcoming Habitable Worlds Observatory should be able to spot the glint of water on habitable planets, and maybe more ...

Astronomers are counting down to using the new Roman Space Telescope to scan the Milky Way for alien moons that might be ...

Planets orbiting stars beyond the solar system come in all shapes and sizes but mostly fit into a few categories: large and hot gas giants, super-Earths that are slightly larger than our planet, ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

The picture-perfect launch of NASA’s Roman Space Telescope could push forward the space agency’s ultimate search for life ...

Nearly two dozen ‘Earth-like’ planets that could be crawling with alien life have been identified by scientists. Exoplanets are what scientists call worlds that orbit other stars (though some are ...

California’s Vasquez Rocks have stood in for alien worlds for decades. A NASA satellite image reveals the famous landscape ...

While long-fabled technologies like Smell-O-Vision are still a long way off from ever being a reality, astronomers can still technically smell stuff deep in space without actually having to get a ...

Investor excitement around the SpaceX IPO is colliding with peak Elon Musk futurism after a new social media post featuring his musings about light-speed travel and exploring alien worlds. In a social ...

Time works differently in space and on other planets, so the decade-plus that Alien Isolation fans have been waiting for the sequel might have felt like a blink of an eye on a different world. On ...

But what exactly is a planet? It seems like an easy question. After all, you’re standing on one right now! But the scientific ...