Strange Dark Galaxy Puzzles Astrophysicists
The surprising discovery of a massive, Milky Way-size galaxy that is made of 99.99 percent dark matter has astronomers dreaming up new ideas about how galaxies form.
Photo illustration by Olena Shmahalo/Quanta Magazine; Source: ESA/Hubble and NASA
Astronomers have long known
of small dark-matter dominated
galaxies. None were supposed
to be as big as ordinary spiral
galaxies such as NGC 3810,
seen here in negative.
of small dark-matter dominated
galaxies. None were supposed
to be as big as ordinary spiral
galaxies such as NGC 3810,
seen here in negative.
Among the thousand-plus
galaxies in the Coma cluster, a
massive clump of matter
some 300 million
light-years away, is at
least one — and maybe
a few hundred — that
shouldn’t exist.
galaxies in the Coma cluster, a
massive clump of matter
some 300 million
light-years away, is at
least one — and maybe
a few hundred — that
shouldn’t exist.
No comments:
Post a Comment