“It was shocking to realize that the Milky Way had a large sibling, and we never knew about it,” said Eric Bell, University of Michigan professor of astronomy in 2018 about his discovery that the Andromeda galaxy (also named M31), our closest large galactic neighbor, shredded and cannibalized a massive galaxy two billion years ago.
Avi Shporer, Research Scientist, MIT Kavli Institute for Astrophysics and Space Research. A Google Scholar, Avi was formerly a NASA Sagan Fellow at the Jet Propulsion Laboratory (JPL). His motto, not surprisingly, is a quote from Carl Sagan: “Somewhere, something incredible is waiting to be known.”
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Radio Signals Detected from Earliest Epoch of the Universe 
The Weirdness of Dark-Matter Free Galaxies
Universal Mechanics of Galaxies – Outer Edge Rotates Once Every Billion Years 
Last Week’s Top 5 Space & Science Headlines –Stephen Hawking’s Warning to the Missing Black Holes
The Extraterrestrial Signal -We May Not Want to Receive (Weekend Feature)
Theoretical Wormholes — “Could Be Hiding Within Dark Matter Inside the Milky Way” (Weekend Feature)
This Week’s Space & Science Quote
Plumes of Enceladus and Europa–Harbinger’s of Life in Global Oceans of Our Solar System?
Astronomers Confirm a New Class of Binary Stars
Triple-Star System of Eta Carinae – Five Million Times Brighter than Our Sun