Most near-Earth asteroids are thought to drift in from the main asteroid belt. But a small subset may have a much closer ...

The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

The John J. McCarthy Observatory - run by volunteers on the grounds of New Milford High School - has been watching the night sky for 25 years.

A niche corner of the commercial space sector is attracting attention from United States national security planners, not because of its economic promise, but because of the technical problems it is ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

Up to 60% of near-Earth objects could be dark comets, mysterious asteroids that orbit the sun in our solar system that likely contain or previously contained ice and could have been one route for ...

January brought a wide range of thoughtful science conversations featuring researchers from the SETI Institute, spanning everything from hands-on planetary defense with citizen scientists to careful ...

Unistellar's citizen scientists are using their smart telescopes to engage in planetary defense, research and observational astronomy.

NASA is monitoring an asteroid that's hurtling towards the Earth at more than 33,000 miles per hour, according to the space agency's Center for Near Earth Object Studies (CNEOS). Designated “2025 XN4, ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...