The asteroid that extinguished the dinosaurs is estimated to have been about 10 kilometers across. That's about as wide as Brooklyn. Such a massive impactor is predicted to hit Earth rarely, once every 100 million to 500 million years.

Phys.org

United Kingdom

Astronomers find the smallest asteroids ever detected in the main belt

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Astronomers have found a way to spot the smallest, 'decameter,' asteroids within the main asteroid belt. They used their approach to detect more than 100 new asteroids, ranging from the size of a bus to several stadiums wide, which are the smallest asteroids within the main belt detected to date.

Science Daily

Daniel Hogan

United States

Asteroid discoveries are essential for planetary-defense efforts aiming to prevent impacts with Earth1, including the more frequent2 megaton explosions from decameter impactors3−6. While large asteroids (≥100 km) have remained in the main belt since their formation7, small asteroids are commonly transported to the near-Earth object (NEO) population8,9. However, due to the lack of direct observational constraints, their size-frequency distributio…

Nature

JWST sighting of decameter main-belt asteroids and view on meteorite sources

A team of astronomers just spotted dozens of tiny asteroids in JWST date — including the smallest ever seen in the main belt between Mars and Jupiter.

Space

Future plc

Purch Group

James Webb Space Telescope finds smallest asteroids ever seen between Mars and Jupiter

The majority of known asteroids orbit inside the main asteroid belt, which is positioned between Mars and Jupiter at an average distance of around 250 million km from Earth. Since the discovery of the first asteroid in 1801, about 750.000 asteroids have been identified, primarily in the last decade

The News Mill

Astronomers find the smallest main-belt asteroids ever detected: Study

Astronomers have found a way to spot the smallest, 'decameter,' asteroids within the main asteroid belt. They used their approach to detect more than 100 new asteroids, ranging from the size of a bus to several stadiums wide, which are the smallest asteroids within the main belt detected to date. The post Astronomers find the smallest asteroids ever detected in the main belt appeared first on Conservative Angle | Conservative Angle - Conservativ…

Conservative Angle

Astronomers find the smallest asteroids ever detected in the main belt - Conservative Angle

A new view of archival Webb telescope data reveals small asteroids in the main asteroid belt are more numerous than we thought. Astronomers have uncovered an unexpectedly large population of small main-belt asteroids thanks to a new analysis of images from the James Webb Space Telescope. The finding could change calculations of the impact rate on Earth from such bodies, which range from house-size to the size of a stadium. These are by far the s…

Signs of the Times

New Webb telescope view shows unexpectedly crowded asteroid belt

The team’s detection method, which identified 138 space rocks ranging from bus- to stadium-sized, could aid in tracking potential asteroid impactors.

Cambridge

Middlesex County

Massachusetts

MIT astronomers find the smallest asteroids ever detected in the main belt

The team’s detection method, which identified 138 space rocks ranging from bus- to stadium-sized, could aid in tracking potential asteroid impactors.The asteroid that extinguished the dinosaurs is estimated to have been about 10 kilometers across. That’s about as wide as Brooklyn, New York. Such a massive impactor is predicted to hit Earth rarely, once every 100 million to 500 million years.In contrast, much smaller asteroids, about the size of …

Astronomers find the smallest asteroids ever detected in the main belt

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