Each question in the ABC 50/50 quiz has only two options: one is right; the other is wrong. But there's a catch.

Take a drive to the CIA’s Area 51 – a route with more UFO sightings and unexplained mysteries than anywhere else on Earth ...

The makers of the blockbusting sci-fi thriller reveal how they made a hit, why Kevin Spacey was almost involved and what went wrong with the sequel ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

These wildly different films explore the wondrous, and sometimes terrifying possibilities of contacting extra-terrestrial life.

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

New citizenship test challenges immigrants preparing for naturalization: Local classes adapt as applicants face stricter ...

After the famed Betty and Barney Hill encounter in 1961, alleged alien abductions were everywhere—and most of the tales followed the same patterns.

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

Astronomers turned the Allen Telescope Array toward interstellar comet 3I/ATLAS, formally designated C/2025 N1 (ATLAS), ...

Teetering near endangered status, the starlet sea anemone produces “an ancient mechanism” for fighting viruses that ...

Scotland's World Cup match against Brazil was expected to attract plenty of attention -- but an anticipated alien invasion was not on the list.