Hubble Hooks a One-Arm Galaxy
NGC 4618 was discovered on April 9, 1787, by the German-British astronomer William Herschel, who also discovered Uranus in 1781. Only a year before discovering NGC 4618, Herschel theorized that…
Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole
Astronomers have found the best evidence for the perpetrator of a cosmic homicide: a black hole of an elusive class known as “intermediate-mass,” which betrayed its existence by tearing apart…
Hubble Fingerprints a Galaxy
The NASA/ESA Hubble Space Telescope is no stranger to spiral galaxies. The telescope has brought us some of the most beautiful images ever taken of our spiral neighbors — and…
Hubble Spots Galaxy’s Dramatic Details
Some of the most dramatic events in the universe occur when certain stars die — and explode catastrophically in the process. Such explosions, known as supernovae, mainly occur in a…
Hubble Detects Dynamic Galactic Duo
Some galaxies are closer friends than others. While many live their own separate, solitary lives, others stray a little too close to a near neighbor and take their friendship even…