Astronomers Find the Smallest Asteroids Ever Detected in the Main Belt Dec. 9, 2024 — Astronomers have found a way to spot the smallest, 'decameter,' asteroids within the main asteroid belt.

Meteoroid streams and meteor showers are fascinating celestial phenomena that occur when Earth passes through trails of debris left by comets or asteroids. These streams consist of small particles ...

Here’s what to know about the Quadrantids and other meteor showers. As the Earth orbits the sun, several times a year it passes through debris left by passing comets—and sometimes asteroids.

This rapid meteor shower is caused by Earth passing through a thin stream of particles from asteroids and comets, leading to dramatic fiery displays as these particles disintegrate in the atmosphere.

Meteors are leftover pieces from broken asteroids and comet particles that spread out in dusty trails orbiting the sun. Each year, Earth passes through the debris trails, and pieces of dust and ...