Comet 3I/ATLAS on Nov. 12, 2025: Tail Keeps Growing, First Radio Signal Confirmed, and How to See the Interstellar Visitor
Published: 12 November 2025 The interstellar comet 3I/ATLAS is putting on fresh science today. New images show its ion tail lengthening and sharpening as the object climbs back into our predawn sky after its late‑October swing around the Sun. Meanwhile, astronomers have confirmed the first radio detection from this visitor—evidence of ordinary comet chemistry rather than extraterrestrial tech. Here’s what’s new, why it matters, and how to spot it. Space+1 Today’s key updates What the new images show Today’s coverage features a crisp sequence from Nov. 10–11: against moonlit, low‑altitude conditions, 3I/ATLAS displays a brighter nucleus and a longer, well‑defined