The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13 as it reached its perihelion, and is now disintegrating.

Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system ... Belt objects, asteroids and comets with new ...

Among the finds is an object thought to be an asteroid from the main belt, which lies between the orbits of Mars and Jupiter.

However, they would have later moved into the solar system following gravitational resonances with their orbits and Neptune. But how exactly does this asteroid-comet hybrid tell us more about the ...

and may have originated from the main asteroid belt, located between the orbits of Mars and Jupiter. Meanwhile, outer dark comets, which may have come from the outer regions of our solar system ...