New Kid on the Block

M101 (NGC 5457), the Pinwheel Galaxy. Image credit: Donald E. Scott Sep 23, 2011 A new supernova explosion highlights the same old gravity problems. On August 24, 2011 astronomers from the Palomar Transient Factory discovered the first type 1A supernova seen in decades. Type 1A class stellar explosions (or, implosions)…

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