CDG-2

CDG-2
Image of the galaxy that was photographed by the Hubble Space Telescope, with four globular clusters visible
Observation data
Constellation	Perseus
Right ascension	03h 17m 12.61s
Declination	+41° 20′ 52.64″
Distance	245 million of ly
Group or cluster	Perseus
Notable features	It is a dark galaxy
See also: Galaxy, List of galaxies

Candidate Dark Galaxy 2 (CDG-2) is a dark galaxy that is made of with a lot of dark matter, along with four globular clusters, in the Perseus cluster. This galaxy has the most dark matter in the universe, estimated to be between 99.94% and 99.98% dark matter. It is located 300 million light years (2.84 sextillion km) away from us.

Related pages

• Dark galaxy
• Dark matter

References

1. ↑ "Dark Galaxy CDG-2 Near Perseus Cluster - NASA Science". 2026-02-18. Retrieved 2026-03-13.
2. ↑ published, Robert Lea (2026-02-19). "Hubble telescope discovers rare galaxy that is 99% dark matter". Space. Retrieved 2026-03-13.

This short article about science can be made longer. You can help Wikipedia by adding to it.