Browsing Tag
interstellar comet
2 posts
12 billion years old, this interstellar comet is older than our Solar System
Jonti Horner, University of Southern Queensland One year ago, on July 1 2025, astronomers discovered a fascinating new…
Could the latest ‘interstellar comet’ be an alien probe? Why spotting cosmic visitors is harder than you think
Comet 3I/ATLAS. International Gemini Observatory/NOIRLab/NSF/AURA/K. Meech/Jen Miller/Mahdi Zamani, CC BY Sara Webb, Swinburne University of Technology On July…