This unexpected color raises new questions about the alien chemistry of comets from beyond our solar system. On Sept. 7 2025, ...

Daniel W.E. Green at the Central Bureau for Astronomical Telegrams, suggests that comet SWAN will hover near magnitude of +6, ...

Images of interstellar comet 3I/ATLAS snapped during the September 7 total lunar eclipse seem to suggest that the latest visitor to the Solar System may be turning green. That's not all that strange ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

Deep in the Chilean desert, the European Extremely Large Telescope (ELT) is currently under construction. Operated by the European Southern Observatory (ESO), the ELT's design features a 128-foot-wide ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came from another star system entirely. At first, some speculated it could be an ...

As the comet gets closer to the Sun, the ice bound around its rocky core begins to sublimate, transforming into a gaseous atmosphere, or coma. The molecules in the coma fluoresce under solar radiation ...

Astronomy is increasingly becoming an online affair. Recent discoveries of interstellar Comet 3I/ATLAS and R2 SWAN have ...

These visual spectacles require no equipment, and can be best spotted at places with a clear horizon, away from city lights ...

A festival in the Yorkshire Dales is set to shine a light on the beauty of the night. The Dark Skies Fringe Festival, which ...

From supermoons to meteor showers, Elizabeth Rizzini has your guide to what may delight in the autumn night skies.