A new "main-belt comet" — a comet-like object masquerading as an asteroid in the asteroid belt between Mars and Jupiter — has been identified, bringing the tally of these beguiling objects up ...

Comets normally fly in from the far reaches of space. Yet astronomers have found them seemingly misplaced in the asteroid belt. Why are they there? By Robin George Andrews What do you expect to ...

Main-belt comets are icy objects found in the asteroid belt between Mars and Jupiter—rather than the cold outer solar system where icy bodies are typically expected. They sport comet-like ...

Dr. Whipple said the gravitational pull of the comet belt probably is responsible for disturbances in the planet Neptune’s orbit. This would mean that the belt would be ten times heavier than earth.

The object, discovered in 2021 and given the temporary name 2021 L4, orbits between Mars and Jupiter in the main asteroid belt, taking 3,956 days (10.83 years) to do so.

A newfound main-belt comet, however, looks quite a bit different than the rest. Astronomers have yet to explain its features, which include not just a tail but a cluster of fragments where a ...

NASA's James Webb Space Telescope has helped astronomers find gas around a comet in the main asteroid belt for the first time. In a release, the agency said the water vapor was confirmed using the ...

Astronomers found water vapor on Comet Read (Comet 238P), a comet located in the main asteroid belt between Jupiter and Mars. For the first time, water has been found on a main belt comet ...

For decades, the prevailing theory about the extinction of the dinosaurs was that an asteroid from the belt between Mars and ... but from a sort of long-distance comet that came from the edge ...

30, ending the probe's historic mission — trace the object's origins back to the Kuiper Belt, whose most famous denizen is Pluto. "These results come from computations of the comet's orbit from ...