An asteroid is a minor planet —an object larger than a meteoroid (thus 1 meter or larger) that is neither a planet nor an identified comet —that orbits within the inner Solar System or is co-orbital with Jupiter …

NASA’s latest alert about a near‑Earth asteroid has revived a familiar mix of anxiety and curiosity about what would happen if a space rock really were on a collision course with our planet ...

Jan 13, 2026 · Asteroid, any of a host of small bodies, about 1,000 km (600 miles) or less in diameter, that orbit the Sun primarily between the orbits of Mars and Jupiter in a nearly flat ring called the …

Apr 25, 2025 · Asteroids, sometimes called minor planets, are rocky, airless remnants left over from the early formation of our solar system about 4.6 billion years ago. Most asteroids can be found orbiting …

4 days ago · There's a bright side to every situation. In 2032, the Moon itself might have a particularly bright side if it is blasted by a 60-meter-wide asteroid. The chances of such an event are still …

Jan 23, 2026 · NPR's Ailsa Chang speaks to astronomer Sarah Greenstreet about her team's new discovery of the fastest-spinning large asteroid known to man.

2 days ago · Science News: The Moon might be getting some attention in 2032. A small asteroid, roughly 60 metres wide, could smack it. Experts say the odds are low, about 4 perc.

1 day ago · Learn about 2024 YR4, the asteroid with a 4 percent chance of hitting the Moon in 2032, and the possible timeline of effects that could follow.

2 days ago · A nearly 60 meter Apollo-class near-Earth asteroid, 2024 YR4 was spotted in 2024 whose path crosses both Earth’s and the Moon’s orbits. Initially it was speculated to impact Earth however a …

1 day ago · NASA is currently tracking a bus-sized asteroid set to zip past the Earth on January 31 at a whopping 8,478 miles per hour. Known as 2022 OC3, the space rock is estimated to be about 24 feet ...