Monday, January 2, 2012

Astronomy Picture of the Day

M1: The Crab Nebula from Hubble 
From NASA

Explanation: This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. The filaments are not only tremendously complex, but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion. The above image, taken by the Hubble Space Telescope, is presented in three colors chosen for scientific interest. The Crab Nebula spans about 10 light-years. In the nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town. TheCrab Pulsar rotates about 30 times each second.



Image Credit: NASAESA, J. Hester, A. Loll (ASU); Acknowledgement: Davide De Martin (Skyfactory)