Tag Archive | "spiral galaxy"
Gazing 25 Million Years into the Past
The Pinwheel Galaxy, a huge spiral galaxy containing more than one trillion stars, has had its portrait taken at multiple wave lengths and the results are stunning. Read on to learn more about this amazing star system and see stunning images viewed through the world's greatest telescopes.
Continue reading...Milky Way Observed Over Mauna Kea Volcano
Thursday, January 29, 2009
Our galaxy has been photographed many times, but this just released NASA panorama is a beauty! The Milky Way is a large spiral galaxy that contains 200-400 billion stars and is 13.2 billion years old. On Earth, we are inside the galactic disk of the Milky Way, which is the arc of uncountable 'milky stars' we see in the night sky.
Continue reading...Supermassive Black Hole at the Center of the Milky Way
Tuesday, January 27, 2009
Astronomers made a spectacular announcement in late fall, 2008. Suspected for several years, a massive black hole has been identified at the galactic center. Black holes are still difficult to understand. They are created by the gravitational collapse of the most massive stars. Some of the star's material is blown away in a colossal explosion called a supernovae.
Continue reading...
Monday, March 2, 2009
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