
Dark Matter Evidence From The Rosat Satellite

by Science Photo Library
Title
Dark Matter Evidence From The Rosat Satellite
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Dark matter evidence. Composite image showing the cluster of galaxies NGC 2300 (seen at optical wavelengths) and the recently discovered cloud of gas (magenta, in X-ray emission) in which the galaxies are embedded. The image of the gas cloud was taken by the ROSAT X-ray satellite and is considered to be strong evidence for the presence of dark matter - dark because it does not emit detectable radiation. The cloud is formed by hot gas which has a temperature of about 10 million Kelvin. The gravitational pull of the cluster is not enough to hold such a cloud together. Some astronomers have suggested that it is dark matter that prevents the cloud from dispersing in space.
Uploaded
February 23rd, 2021
Embed
Share
Similar Subjects
Comments
There are no comments for Dark Matter Evidence From The Rosat Satellite. Click here to post the first comment.