A Japanese spacecraft is on a remarkable journey toward one of the most puzzling celestial objects in our solar system — a ...

These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...

On its way to Didymos and Dimorphos, Hera has found time to test its cameras in preparation for the big moment.

When you look up at the night sky, you might wonder about the celestial objects that streak through space,comets, asteroids, ...

Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...

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

In the new study, researchers set out to calculate just how likely it is that an asteroid could hit Earth during the average ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists' minds as its revised trajectory is now ...

Main-belt comets (MBCs) and active asteroids represent a fascinating intersection of cometary and asteroidal physics. These bodies, residing within the main asteroid belt, occasionally exhibit ...

Several massive asteroids are expected to whiz close to Earth in the coming weeks, including one nearly the size of the Empire State Building. Two are expected to soar near the planet on Saturday ...

An asteroid the size of a school bus is set to zoom by the Earth on Tuesday, traveling several times faster than a speeding bullet. The asteroid, named 2025 BS4, is said by NASA 's Jet Propulsion ...