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NASA tracked this object as an asteroid for 30 years, then realized it was a comet

For nearly three decades, NASA’s Center for Near-Earth Object Studies classified the object known as (875163) 1998 SH2 as an ...
Morning Overview on MSN

Japan’s Hayabusa2 is set to buzz a spinning asteroid far from home

Japan’s Hayabusa2 spacecraft flew past near-Earth asteroid (98943) Torifune on July 5, 2026, completing the first close ...

Scientists Believed This Near-Earth Object Was an Asteroid for 28 Years. They Were Wrong

In a study published in Nature Astronomy, a team of scientists reveals the true identity of a near-Earth object with an ...

China eyes first kinetic impact test for asteroid defense, targeting smaller and less predictable asteroids than NASA’s DART

China is studying an on-orbit kinetic impact test mission for planetary defense that would target a small near-Earth asteroid ...
techtimes

Dark Comet Disguised as Asteroid Derailed 27 Years of Planetary Defense Math

This artist’s concept depicts a near-Earth asteroid with an elongated orbit. A few objects such as these can exhibit significant perturbations in their motion around the Sun and could turn out to be ...
techtimes

Asteroid Found 8 Days Ago Passes Earth at 57,000 Miles Today — Watch the Free Livestream Now

A basketball-court-sized asteroid discovered just eight days ago is making one of the closest flybys ever recorded for an object of its class today, May 18, passing within 57,000 miles (91,000 ...