Astronomers using the James Webb Space Telescope have discovered that a distant alien planet's atmosphere is surprisingly lopsided. Located 1,300 light-years away, the scorching gas giant WASP-17b ...

Space is full of electromagnetic radiation like radio signals, but those signals are usually coming from stars or black holes, not planets.

A giant planet more than 1,000 light-years away has an atmosphere that extends farther on one side than the other.

The Etosha Pan in northern Namibia, the largest salt flat in the country, looks otherworldly in this satellite photo.

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

This summer, exoplanet science — the study of planets orbiting stars beyond our sun — took a big step forwards. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet ...

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 ...

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, ...

Some scientists believe the sheer number of stars, planets and potentially habitable environments in space makes ...

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 ...

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 ...