Today on the
#arXiv:
Yang et al. 2025, "Spectroscopic Characterization of Interstellar Object
#3I/ATLAS: Water Ice in the Coma" -
arxiv.org/abs/2507.14916
#3I is putting out water ice along with organic and silicate dust.
As expected for a comet.
Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the Coma
We present optical and near-infrared spectroscopy of the interstellar object 3I/ATLAS, obtained with Gemini-S/GMOS and NASA IRTF/SpeX on 2025 July 5 and July 14. The optical spectrum shows a red slope...
