9, 2024 — 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 ...

Take this quiz to see how much you know about comets and meteors. Save $5 on a Nat Geo Digital Subscription Your interests, backed by facts and science—now only $19 ...

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 rock ...

Here’s what to know about the celestial displays: Meteors are leftover particles from comets and broken asteroids, according to NASA. As comets orbit the sun, they leave dusty trails behind them.