Asteroid - Wikipedia
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 …
Asteroids - Science@NASA
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 …
Asteroid | Definition, Size, & Facts | Britannica
Dec 24, 2025 · 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 …
Clemson astrophysicists tell us about asteroids and whether we …
Jun 23, 2025 · Asteroids can give scientists key insights into the formation of our solar system and the Milky Way. They contain materials that predate the formation of our solar system. Earlier …
Scientists Are Racing to Uncover An Asteroid’s Secrets
Apr 22, 2025 · The asteroid 99942 Apophis is headed for a close flyby with Earth on April 13, 2029, and space agencies are coordinating efforts to study the object during this the once-in-a …
This asteroid is spilling secrets about the origin of life on Earth
1 day ago · Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo missions—and they’re shaking up the search for life beyond …
NASA Alert! 160ft Asteroid Racing Towards Earth On January
10 hours ago · Science NASA Alert! 160ft Asteroid Racing Towards Earth On January 7, 2026: Are We Really Safe? Authored by: TN Tech Desk Updated Jan 6, 2026, 19:10 IST Space is …
Inside the International Asteroid Warning Network - Nature
2 days ago · Kelly Fast, Acting Planetary Defense Officer for NASA, describes the global network working to detect and assess asteroids that could potentially threaten Earth.
Comprehensive Asteroid and Comet Database | Space Reference
The two most noteworthy classifications for asteroids are "Near Earth Asteroid" (NEA) and "Potentially Hazardous Asteroid" (PHA). Despite the names, neither classification indicates …
ESA - Asteroids
Asteroids are cosmic time capsules. These ancient rocks, left over from the formation of the Solar System, offer a direct link to our distant past. They provide clues to how planets like Earth …