The signing ceremony was held on Thursday (July 24) at the Mary W. Jackson NASA Headquarters building in Washington.

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists’ minds. The building-sized object, which ...

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

Asteroid 2025 OU1, about 140 feet in diameter, will safely pass Earth in 2025. While it poses no immediate threat, scientists ...

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 ...

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