"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

A 170-foot asteroid is set to race past Earth today at extraordinary speed, NASA says. Though no impact is expected, ...

A small asteroid flew 266 miles over Antarctica. It was too small to pose a threat, but objects of that size can produce ...

Asteroid 2026 CU1 will sweep past Earth this week at high speed, close enough to attract attention yet deemed safe, raising ...

On February 10, 2026, the European Space Agency (ESA) awarded a significant contract to OHB Italia for the development of the ...

The European Space Agency is sending a probe to intercept an asteroid that will swing uncomfortably close to Earth on a Friday the 13th in 2029. The Ramses mission will fly alongside the asteroid ...

A small asteroid just gave the Earth a close buzz. The little space rock, called 2025 TF, safely passed within roughly 250 miles (400 km) of our planet on Tuesday (Sept. 30) at 8:49 p.m. EDT ...

Three years after making a visit on Halloween, an unusually-shaped asteroid is returning for another flyby. According to NASA, the asteroid, dubbed "2015 TB145," is most likely a dormant comet that ...

Add Yahoo as a preferred source to see more of our stories on Google. (Credit: NASA/Goddard Space Flight Center) NASA has secured the necessary funding for the OSIRIS-APEX mission, which would see the ...

NASA has secured the necessary funding for the OSIRIS-APEX mission, which would see the repurposed OSIRIS-REx spacecraft used to visit another asteroid, Apophis, in 2029. The mission—one of 19 science ...