Massive galaxy cluster MACS J0717
four galaxy clusters in collision
Credit: NASA, ESA, CXC, C. Ma, H. Ebeling, and E. Barrett (University of Hawaii/IfA), et al., and STScI
four galaxy clusters in collision
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkf_yr6_NfX2W53mac0MTlvaqTR_eyYaqSSG20kiqVW1PW2tUX3ctzgNc1Ce_Dc4vdtoaewzvCWAAnHEp9DgelZDYtHue5niRj_C7C1MgoR5p-h5NPlDwjTt4z9Hlp90yqQjDnbg/s400/hs-2009-17-a-large_web.jpg)
This composite image shows the massive galaxy cluster, MACS J0717, (for short), where four separate galaxy clusters have been involved in a collision — the first time such a phenomenon has been documented.
The repeated collisions in MACS J0717 are caused by a 13-million-light-year-long stream of galaxies, gas, and dark matter — known as a filament — pouring into a region already full of matter.
April 16, 2009
Hubble News Release Archive: Galaxy
Now that's a cosmic light show!
No comments:
Post a Comment