Asteroids

The 2,000-foot-wide asteroid 2013 NK4 just made its closest approach to Earth in recorded history, sailing by at about eight lunar distances. You can still see the massive rock with a backyard telescope.

A newly discovered asteroid got within 12,000 miles of Earth on a harrowing, ultra-close approach today. The space rock won't return for 70 years.

Dozens of boulders dislodged by NASA's asteroid-smashing DART test could hit Mars in the future, new research suggests.

Scientists shared the first comprehensive science results from NASA's OSIRIS-REx asteroid-sampling mission at the Lunar and Planetary Science Conference, revealing the out-of-this-world makeup of asteroid Bennu.

Computer simulations reveal that the close flyby of Apophis, the "God of Chaos" asteroid, in 2029 still poses no risk to Earth, even when a worrying, previously unrecognized factor is taken into account.

NASA's DART spacecraft seems to have completely reshaped asteroid Dimorphos after violently crashing into it in Sept. 2022

Earth's closest cosmic companions, known as 'minimoons' or 'quasi-moons', could hold the secrets to the history of our early solar system.

NASA's final tally shows that OSIRIS-REx collected roughly 4 ounces (120 grams) of material from asteroid Bennu. The sample collected from the "potentially hazardous" asteroid is thought to contain some of the earliest precursors for life.

While asteroids are rich sources of precious and valuable materials, scientists still haven't fully committed to mining them.

Can we mine the moon and asteroids? NASA wants to make it happen, but it's still a huge legal gray area, experts say.