Look into the sky this month and you will be able to see a comet that hasn’t visited Earth in 80,000 years. Comet C/2023 A3 (Tsuchinshan-ATLAS) this week becomes visible low in the west following ...
A “dirty snowball” from the distant icy cloud encircling our solar system passed by the Sun and Earth in autumn 2024. Earth-based observers scanning the night sky in autumn 2024 may witness a ...