Man-made risks such as nuclear war or lab-created viruses are most likely to bring about the end of the world as we know it, according to author Tom Ough, who has written a new book about threats to h ...

On July 28, 2025—an asteroid roughly 230 feet across (think the size of a large airplane) named 2025 OW will zip past Earth ...

As scientists wait for the asteroid to reappear, its revised trajectory is now drawing attention to another possible target: ...

Earth has been cleared of an impact with the recently discovered asteroid 2024 YR4, but there are still risks to the planet ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

Senegal has officially joined the Artemis Accords, becoming the 56th nation — and the fourth African country — to commit to a ...

Scientists have discovered that Earth could have at least six minimoons that we never knew existed. A minimoon is a small ...

Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four ...

Heliostats that harness sunlight by day could help detect asteroids by night, offering the U.S. a scalable planetary defense ...

Sandia scientist John Sandusky believes he has found a way to put heliostats, which typically turn solar energy into ...

When high-velocity asteroids land on Earth, they can form a meteor impact crater. Such collisions have occurred throughout ...