"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 ...

NASA's Lucy mission flyby asteroid Dinkinesh (aka 1999 VD57). Credit: NASA Goddard Space Flight Center Produced, Edited, and ...

A 140-foot asteroid is set to sweep past Earth today, and it seems everyone is taking notice. Astronomers have been tracking the space rock, officiall.

A 170-foot asteroid is set to race past Earth today at extraordinary speed, NASA says. Though no impact is expected, scientists are watching closely. What makes this flyby worth attention?

The spacecraft-taken image shows interstellar comet 3I/ATLAS shedding gas and dust and offers new insights into the visitor.

These peculiar celestial 'snowmen' are found in the Kuiper Belt, a vast expanse beyond Neptune, which is filled with icy remnants dating back to the solar system's formation. The region lies beyond ...

“These kinds of systems are very rare and also very difficult to discover. This is the shortest outer period (i. e. the most ...

On 12 August 2026, a total solar eclipse will be visible from Greenland, Iceland and northern Spain, making it the first to pass over mainland Europe since 1999. Our stories cover all you need to know ...