Matthew Dominick continues to wow us with impressive astrophotography from aboard the International Space Station.

Comets take the name of the discoverer, whether that be a human or an automated telescopic survey that robotically inspects ...

Like all comets, Halley’s Comet is slowly losing material each time it passes close to the Sun. As its volatile ices sublimate, it loses mass, and its nucleus gradually shrinks. Researchers estimate ...

27, when it arrives at perihelion — the closest point in its orbit to the sun. The saga of Comet Tsuchinshan-ATLAS (pronounced Choo-cheen-SHAHN -ATLAS), is now coming down the home stretch.

Comet Tsuchinshan-ATLAS originated from the Oort Cloud, a bubble of ice and dust that surrounds our solar system. It was ...

Astronomers and sky watchers have their fingers crossed that an approaching comet could put on a nighttime show on Earth next month, but it’s already strutting its stuff for those in space.

Comets like C/2023 A3 are balls of frozen gases, rocks, and dust that orbit the sun. They are often spectacular because of two physical phenomena that occur during their journey. The first is the ...

Short-period comets orbit the Sun in 200 years or less and mostly come from the region just beyond Neptune. Long-period comets come from the Oort cloud. Comet C/2023 A3 has a nearly hyperbolic orbit.

Throughout Earth's history, the planet's surface has been regularly impacted by comets, meteors, and the occasional large ...

The debris scattered by the spacecraft on impact also played a role in the disturbed equilibrium between the moon and its asteroid, shortening Dimorphos' orbit ... asteroid or comet will approach ...

To obtain a sample for such a study, some scientists suggest, an unmanned spacecraft should be shot into the orbit of a regularly reappearing comet. The craft would rendezvous with the comet ...