Sagittarius B2 (Sgr B2)
A massive, dense HII region and molecular
cloud complex located near the center of our Galaxy, about 26,000 light-years
away. With a mass of some 3 million solar masses and a density up to 108
particles/cm3, it is the richest concentration of molecules in
the Milky Way Galaxy. Many different types
of interstellar molecule have been identified
within Sagittarius B2, including glycine,
the simplest amino acid (see amino acids,
in space) and the sugar molecule glycoaldehyde. Sagittarius B2 may be
part of a shell of material ejected by a large explosion.
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Sweet news for astrobiologists
(Jun 18, 2000)
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