Space & Astronomy
Dwarf galaxy lurking just outside Milky Way
By
T.K. RandallJanuary 16, 2011 ·
12 comments
Image Credit: NASA
The invisible 'Galaxy X' is thought to contain an overwhelming amount of dark matter.
Dark matter is an invisible material that scientists think makes up more than 80 percent of the mass in the universe, we can not see the dark matter directly but we can observe its gravitational effects. Sukanya Chakrabarti of the University of California has calculated that the new unknown dwarf galaxy may be 260,000 light-years away.
"All of these dark matter studies are really starting to map out the distribution of dark matter," said Pooley, who was not part of Chakrabarti's team. "Any information we get is extremely valuable. "
Source:
National Geographic |
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