The researchers had initially selected a different target for Hubble.

The breakup of C/2025 K1 (ATLAS), captured by the NASA/ESA Hubble Space Telescope, opens a window into how fragile comet nuclei evolve and collapse.

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it passed close to the sun.

What Looked Like a Planet Was Actually a Massive Space Collision So, imagine astronomers are looking at something, thinking, ‘Wow, cool planet!’ Then, bam! Turns out it wasn’t a planet at all, but a ...

Kepler-51d is the coolest and least dense of the planets in this planetary system. “We think the three inner planets orbiting ...

The Hubble Space Telescope captured footage of a comet breaking apart that could offer new insights into the early days of the universe.

In a happy twist of fate, NASA's Hubble Space Telescope witnessed a comet in the act of breaking apart. The chance of that happening while Hubble watched is extraordinarily minuscule. The findings are ...

Watching a star die has an oddly intimate quality, particularly when it fades slowly and almost purposefully rather than exploding or erupting. The Hubble ...

Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the ...

They discovered that the host galaxy is incredibly massive — weighing in at over 40 billion times the mass of our Sun — and deeply obscured. The James Webb Space Telescope, which can peer through gas ...