During September's total lunar eclipse, astronomers captured rare images of interstellar comet 3I/ATLAS glowing green, suggesting more about its chemistry.

Interstellar comet 3I ATLAS glows green during lunar eclipse | Space photo of the day for Sept. 15, 2025

Source: space
Source Link: https://www.space.com/stargazing/interstellar-comet-3i-atlas-glows-green-during-lunar-eclipse-space-photo-of-the-day-for-sept-15-2025