Australia's space agency said there's a completely rational, albeit cosmic, explanation behind the mysterious orbs that ...

NASA's proposed Habitable Worlds Observatory will be designed for robotic repairs instead of astronaut servicing. The ...

During the American Civil War soldiers often saw UFOs and strange beings, leading Ancient Astronaut Theorists to ask if ...

The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

A new policy paper proposes a lunar biocontainment facility for extraterrestrial samples. This secure lunar laboratory would ...

"There’s stardust and carbon in our veins," the event's organizer, Gary Adrian Randall, says. "We're cosmic beings ... we're ...

A new study proposes examining Mars and other space samples on the Moon before bringing them to Earth, arguing it would ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

Star Trek's Prime Directive revolutionized the science fiction genre by promoting cooperation and non-interference with alien ...

A sci-fi show Steven Spielberg once backed followed a group of space travelers searching an alien planet for a place humanity could actually survive.

British sci-fi television is among the most influential in the genre, and this forgotten series from the 1970s is a part of ...

There are hundreds of curated Marvel comic books you can read on the USA TODAY PLAY app. Try out these 10 classic superhero ...