comet C/2025 A6 Archives

Optical image of comet C/2025 A6 obtained on 21st October 2025 (18:35–18:50, UTC+8) with the 70-cm UCASST telescope. The image combines 5-min exposures in each of the R, V, and B filters and shows a coma with an apparent diameter of ∼8–10 arcmin. The telescope is equipped with a 2048×2048 detector with a pixel size of 13.5 µm, providing a field of view of about 20.8'×20.8', at the time of the observation, 1′ corresponds to a projected scale of ∼25,700 km at the comet. -- astro-ph.EP

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Status Report

From Emission To Absorption: The FAST Observation Of The OH 18-cm Lines From The Comet C2025/A6

by Keith CowingDecember 29, 2025December 29, 2025

We observed comet C/2025 A6 with FAST telescope equipped with the ultra-wideband receiver from 23rd October to 8th November 2025 and detected the OH 18-cm lines for the first time.

comet C/2025 A6

From Emission To Absorption: The FAST Observation Of The OH 18-cm Lines From The Comet C2025/A6

Astrobiologist Dale Andersen’s Antarctic Field Report: 3 November 2026: Digging Out and Packing Before the Traverse to Lake Untersee

When Should We Listen for Alien Signals? SETI Institute Scientists Turn to Game Theory.

Cheops Guest Observers Opportunity: JWST/HST Fast Track Proposals

Eyes on Exoplanets Software October Release Notes

A Mitochondrion-like Ribosome In An Insect Endosymbiont