The Milky Way vs. Andromeda: When Galaxies Collide

Laura Prichard, Space Telescope Science Institute

Our sun is one of hundreds of billions of stars that make up the spiral disk of our Milky Way galaxy. In turn, our galaxy is one of a hundred billion more that we can observe in the universe.

Join Dr. Prichard as she delves into the discovery of these “island universes” and explains how many types of galaxies form.

Take a tour of our galaxy’s neighborhood, including an adventure into our prospects of interstellar travel. The exploration will reveal the ultimate fate of the Milky Way when it collides with our massive spiral neighbor, the Andromeda galaxy, in 4 billion years.

Host: Frank Summers, Space Telescope Science Institute
Recorded live on Tuesday, February 2, 2021
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