Tag Archives | black holes

NGC6744 is a galaxy very much like our own Milky Way in appearance.  A barred spiral galaxy, NGC6744 lies at a distance from Earth estimated at 30 million light years. The galaxy is 150,000 light years in diameter. Like the Milky Way, it contains an estimated hundred thousand million stars.
Used with permission by:  UW-Madison University Communications 608-262-0067
Photo by:  courtesy Southern African Large Telescope (SALT) project
Date:  2005     File#:  scan provided

Black Holes A Cosmic Contraceptive?

Astronomers from Yale and Leiden University in The Netherlands have discovered that old stars dominated many large galaxies in the early universe, raising the issue of why these galaxies progressed into galactic adulthood so early on in the life of the universe. Cosmologists know that every year, only a handful of new stars are born […]

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