Asteroid 2024 YR4, which once appeared to be on a collision course with Earth, may hit the moon, which could create some ...

"In my opinion, planetary defense is an operational mission which should be formally tasked to U.S. Space Command." ...

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

Learn about the plane-sized asteroid that will pass by Earth the week of July 28, 2025, and find out how astronauts can track asteroids across space.

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

Space officials estimate the rock is about 220 feet across, making it larger than the Leaning Tower of Pisa at 185 feet. 2025 ...