This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

UFOs could be using our oceans to remain hidden from humanity, a retired US admiral has suggested, as a huge underwater feature has been touted as a possible entrance to one such secret hideout.

Earth already contains organisms that survive conditions humans could never endure. Alien life, if it exists, may force ...

Alien life may not need the kind of home humans instinctively search for. Some of the strangest possibilities begin once ...

Earth’s deep past leaves plenty of unanswered questions. None currently proves an alien visit, but scientists know the ...

By growing microorganisms in the lab, scientists have uncovered new support for the prospect that Saturn's moon Enceladus ...

Astronomers discover three supermassive black holes in galaxy J0148-4214, with two on a collision course, revealing secrets ...

It’s very likely that comets carrying organic materials have crashed into Earth at some points in our distant past. The issue ...

Scientists at the University of New Mexico have played a key role in identifying a rare, 4.1-billion-year-old Martian ...

Long before modern astronomy, humans looked to the stars and were astounded by what they saw. Even by the most ancient reckoning, the night sky offered enough to inspire awe and wonder, make us feel ...

Caltech President Ray Jayawardhana studies planets beyond our solar system in the search for alien life. But he now faces ...

Two senior military officials claim to have witnessed mysterious black triangle objects earlier in 2026 speeding over ...