Comets without tails, called dark comets, are a newly discovered space object. Now, astronomers know they come in 2 classes.

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...

While it is already dimming after a close encounter with the sun, Comet C/2024 G3 (ATLAS) – also called the Great Comet of ...

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

Comet C/2024 G3 (ATLAS) seen above ESO's Paranal Observatory in Chile on Jan. 21, 2025. ESO's Very Large Telescope sits atop ...

For this, astronomers used two facilities: the Submillimeter Array (SMA), CfA's eight-dish collection of radio telescopes in ...

Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

Comet C/2024 G3 (ATLAS ... snapped a stunning photo of the icy visitor from the outer reaches of the solar system from his perch in the cupola on the International Space Station.

NASAs Perseverance rover has collected a historic rock sample dating back to the Noachian era on Mars. This discovery could ...

So, these are all changes that astronomers will look for each time comets come close to the Sun. And in some cases, orbital changes in a small solar system object can be used by astronomers to ...