In this episode of the Hubblecast, scientists Jay Anderson and Roeland van der Marel show how they have used Hubble observations to predict the future of the Andromeda Galaxy and the Milky Way.
Projecting the motion of Andromeda’s stars over the next 8 billion years, the astronomers now know the path that galaxy is taking through space. And it’s heading straight for us! Computer simulations based on Hubble observations show how the two galaxies will crash together in around 4 billion years’ time.
ESA/Hubble & NASA/STScI
Visual design and editing: Martin Kornmesser
Web and technical support: Raquel Yumi Shida and Mathias André
Written by: Oli Usher
Interviews: Mary Estacion (NASA/STScI)
Animations: Frank Summers (NASA/STScI), Greg Bacon (NASA/STScI)
Narration: Dr J (Joe Liske)
Images: NASA & ESA
Music: John Stanford from Deep Space
Directed by: Oli Usher
Executive producer: Lars Lindberg Christensen
More information and download-options:http://spacetelescope.org/videos/hubblecast55a/