Monday, June 3, 2013

Earth's Milky Way neighborhood gets more respect

Our Solar System's Milky Way neighborhood just went upscale.

We reside between two major spiral arms of our home galaxy, in a structure called the Local Arm.

New research using the ultra-sharp radio vision of the National Science Foundation's Very Long Baseline Array (VLBA) indicates that the Local Arm, previously thought to be only a small spur, instead is much more like the adjacent major arms, and is likely a significant branch of one of them.