Halley's Comet, arguably the most famous comet, is a short-period comet that is visible to the naked eye from Earth. It last appeared in the inner parts of the Solar System in 1986 and is projected to return again in 2061. Know more about it! | Unacademy

Observation of Comet ISON (C/2012 S1), November 2024. Location: Azores, São Miguel Island. Telescope: Celestron AstroMaster 130AZ (Newtonian reflector). Captured with Xiaomi 14 Ultra. A huge thank you to #Celestron for making it possible to witness such rare and breathtaking cosmic events. Their telescopes open a window to the Universe — revealing wonders invisible to the naked eye and bringing the beauty of the cosmos closer than ever. | Мир глазами микроскопа

A comet from another star system is flying through ours. The comet, named 3I/ATLAS, is only the third known interstellar object ever observed in our solar system. First spotted in July 2025 by the ATLAS telescope in Hawaii, it didn’t take long for astronomers to realize it wasn’t from here. Its speed and trajectory made it clear: this comet came from deep space. At its closest point to the Sun – called perihelion – 3I/ATLAS was hidden from Earth’s view, blocked by the Sun. But Mars was perfectly