"Project Hail Mary" really pushes the limit when it comes to non-humanoid aliens. But researchers posit that real aliens ...

Scientists can't fully agree on what GJ504b actually is. It may be a massive planet or a brown dwarf, a mysterious class of ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

There are "vast hidden magma systems" inside of Mars, scientists say – and it could have major implications for the search ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Alien: Earth star, Timothy Olyphant, reveals that Season 2 will take the story for the prequel series' next chapter in a very ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be ...

As for those salt clouds, the salt is not table salt or even Pink Himalayan Rock Salt, though that would go splendidly with ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

James Webb has revealed that the sunrise and sunset sides of WASP-121 b have surprisingly different atmospheres.