On July 28, 2025, asteroid 2025 OW, about 210 feet across, will pass Earth at a safe distance of 393,000 miles. NASA assures ...

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

YR4 was detected by the Asteroid Terrestrial-impact Last Alert System, or ATLAS telescope, in Río Hurtado, Chile, two days ...

NASA Planetary Scientist Noah Petro dishes on what it took plan the impressive touch-and-go return mission, why much of the ...

A large asteroid once considered the greatest known risk to Earth may now be on track for a direct hit — not on our planet, ...

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

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

Declining birth rates around the world may pose new challenges for humanity. A new book on the topic by Elon Musk–funded ...

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 ...