When comet 3I/ATLAS swept through the inner solar system in late 2025, it gave astronomers something no interstellar visitor had offered before: a chance to see alien ice glow in X-rays. Over three ...
In a stunning stroke of luck, Hubble witnessed a comet splitting apart almost in real time. The rare observation is giving ...
In December 2025, NASA’s SPHEREx mission took a fresh look at the interstellar comet 3I/ATLAS by turning on its infrared devices. This is the third such object passing through our solar system.
Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope ...
In an incredibly lucky cosmic accident, NASA’s Hubble Space Telescope captured a comet breaking apart in real time—something astronomers have long tried and failed to observe. The comet, C/2025 K1 ...
The Hubble Space Telescope captured rare images of a comet as it was breaking apart in November 2025. Credit: NASA / ESA / Dennis Bodewits / Joseph DePasquale For practically as long as NASA's Hubble ...