The population suggested by 2017 OF201’s discovery potentially hundreds of its kind could total 1% of Earth’s mass, comparable to the Moon’s mass and redefining the solar system’s tally.

China's first asteroid sample-return mission, the 2nd in the Tianwen series, will reach Kamo'oalewa in July 2026. The probe will map the asteroid, collect samples, and carry them back to Earth in a ...

Together, this “wide-fast-deep” system will generate 20 terabytes of data every night — creating an unprecedented time-lapse “movie” of the cosmos over the next 10 years, and an incredibly powerful ...

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

The Perseid meteor shower kicks off tonight with shooting stars and zooming fireballs. Here's where, when, what time, how to watch for best visibility ...

Scientists have officially resolved a long-standing mystery about the Moon’s internal structure, confirming that its inner core is not molten, but a solid sphere with a density akin to iron. This ...

The total solar eclipse Monday August 21, 2017, in Madras, Oregon. The path of totality map has shifted with more accurate calculations. Getty ...

A NASA map of the contiguous U.S. shows the path of April 8's total solar eclipse, stretching in a narrow band from Texas to Maine. Outside of this path, a partial eclipse will still be ...

A 3D map of our cosmic neighborhood has revealed hot and cold regions as well as an "escape tunnel" from our local bubble. When you purchase through links on our site, we may earn an affiliate ...

Inside was what at first glance appeared to be unremarkable pebbles and dust but was actually some of the oldest material in our solar system: moon rocks. “You’re never going to have an older rock in ...