The Sky Tonight

July 03, 2014

Puzzling X-rays point to dark matter
Paris (ESA) Jul 03, 2014
Astronomers using ESA and NASA high-energy observatories have discovered a tantalising clue that hints at an elusive ingredient of our Universe: dark matter. Although thought to be invisible, neither emitting nor absorbing light, dark matter can be detected through its gravitational influence on the movements and appearance of other objects in the Universe, such as stars or galaxies. Based on this indirect evidence, astronomers believe that dark matter is the dominant type of matter in the Univers ... read more

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