Using the Hubble Space Telescope, astronomers have discovered what seems to be a galaxy that is the most heavily dominated by ...

Comet 41P slowed its rotation to a halt and then began spinning in the opposite direction, surprising scientists.

A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

Called CDG-2, this newly identified “ghostly” galaxy may be one of the most dark matter-dominated galaxies ever discovered, with a staggering 99% of its total mass made up of dark matter — a ...

The Hubble Space Telescope has unveiled a remarkable new view of the Egg Nebula, the closest known pre-planetary nebula to Earth. The image captures a Sun-like star casting off its outer layers, ...

The Hubble Space Telescope captured an amazing view of spiral galaxy NGC 6956. The galaxy is located "214 million light-years ...

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.

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The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could provide a fossil record of how supermassive black hole growth in the early ...

Due to its young age, the particle winds emanating from HD 61005's surface are much more powerful.