This animation shows a cluster of galaxies cluster form as clumps of dark matter, gas and galaxies are pulled together by gravity to form groups of dozens of galaxies. These groups in turn merge over the course of billions of years to form clusters of hundreds, even thousands of galaxies. As a galaxy cluster is formed, its huge reservoir of hot gas is heated to tens of millions of degrees Celsius and glows brightly in X-rays.
Animation: NASA/CXC/A.Hobart
i farted
FreeBlago1 4 months ago
I think the 'red balls' in the center of each cluster is where the most energy in the form of gas and heat is present caused by the black holes at each of the centers. This stuff is actually fascinating to watch. U have to wonder, are we looking through a telescope or a microscope.
2006ashton 1 year ago
This may be for fun but clusters of galaxies have very few pretty spirals. The gas doesn't stay in a cluster for very long.
astroluv 2 years ago
That red balls has got to be some kind of infinit massive blackholes.
AX53B60 3 years ago
amazing
toan423 4 years ago
what is that red ball in the middle of each cluster?
bogdan9 4 years ago