The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its ...

3I/ATLAS is now sailing away from Earth and our solar system itself, but astronomers have already learned a wealth of ...

A team of astronomers, spearheaded by researchers from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences, has successfully conducted groundbreaking radio observations of ...

In my lifetime, I have seen a few spectacular comets, starting with Halley’s Comet in 1987. Ten years later, it was Hale-Bopp Comet which blessed our skies for nearly 18 ...

New observations of interstellar comet 3I/ATLAS show high levels of deuterated water, suggesting it formed in a colder star ...

Two comets are converging in the night sky this month You can see an online livestream of the comets via the Virtual Telescope Project later this week The comets are called C/2025 A4 (Lemmon), and ...

Protoplanetary disk. Figure from a computer simulation visualizing the formation of planets (https://svs.gsfc.nasa.gov/12278 ). Photo: NASA/JPL-Caltech. August 22, 2024, Mountain View, CA - An ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comets SWAN and Lemmon look set to offer a rare chance to ...

New observations of the interstellar comet 3I/ATLAS include the first measurement of the abundance of deuterated water ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...