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Clash of the Titans: Hubble's Universe Unfiltered

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Published on Apr 5, 2013

Astronomers have known for decades that our Milky Way Galaxy and the neighboring Andromeda Galaxy are approaching each other. What we haven't known is just how close the encounter will be. Recent Hubble measurements have been able to pin down the trajectory with a smashing conclusion: in about four billion years the two galaxies will crash together in a nearly head-on collision. Further, the spiral galaxies will have completely merged and transformed to create a single elliptical galaxy around six billion years in the future.

"Hubble's Universe Unfiltered" is a recurring broadcast from HubbleSite.org, online home of the Hubble Space Telescope. Astrophysicist Frank Summers takes viewers on an in-depth tour of the latest Hubble discoveries. Find more episodes at HubbleSite.org.

HubbleSite page: http://hubblesite.org/explore_astrono...

* Notes

NASA's Hubble Shows Milky Way is Destined for Head-on Collision with Andromeda Galaxy:
http://hubblesite.org/newscenter/arch...

Milky Way drawing
Credit: NASA, JPL-Caltech, R. Hurt (SSC-Caltech)
http://www.spitzer.caltech.edu/images...

Milky Way panorama
Copyright: Axel Mellinger (used with permission)
http://home.arcor-online.de/axel.mell...

Large Magellanic Cloud
Credit: David Malin
Copyright: Australian Astronomical Observatory (used with permission)
http://www.aao.gov.au/images/captions...

Small Magellanic Cloud
Credit: NOAO/AURA/NSF
http://www.noao.edu/image_gallery/htm...

Andromeda Galaxy
Credit: Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF
http://www.noao.edu/image_gallery/htm...

Triangulum Galaxy
Credit: T.A.Rector (NRAO/AUI/NSF and NOAO/AURA/NSF) and M.Hanna (NOAO/AURA/NSF)
http://www.noao.edu/image_gallery/htm...

Local Group Schematic
Credit: Christine Godfrey

Visible Light Spectrum
Credit: Wikimedia Commons user Philip Roman
http://commons.wikimedia.org/wiki/Fil...

Neon Pizza Sign
http://free-images-etc.rb-d.com/wp-co...

Neon Spectral Lines
Credit: Wikimedia Commons user Jan Homann
http://commons.wikimedia.org/wiki/Fil...

Hydrogen Spectral Lines
Credit: Wikimedia Commons user Jkasd
http://commons.wikimedia.org/wiki/Fil...

Interacting Galaxies UGC 8835
Credit: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University)
http://hubblesite.org/newscenter/arch...

Barnard's Star Proper Motion
Credit: Steve Quirk
http://commons.wikimedia.org/wiki/Fil...

Stellar Deep Field
Credit: NASA, ESA and T.M. Brown (STScI)
http://hubblesite.org/newscenter/arch...

Milky Way and Andromeda Collision Scenario
Credit: NASA, ESA, and A. Feild and R. van der Marel (STScI)
http://hubblesite.org/newscenter/arch...

Milky Way, Andromeda, Triangulum Encounter Visualization
Visualization Credit: NASA, ESA, and F. Summers (STScI)
Simulation Credit: NASA, ESA, G. Besla (Columbia University), and R. van der Marel (STScI)
http://hubblesite.org/newscenter/arch...

Music "Stars"
Credit: Shamil Elvenheim (CC-BY-NC-SA 3.0)
http://freemusicarchive.org/music/Sha...

Earth in Hammer-Aitoff Projection
Credit: Wikimedia Commons user Strebe
http://commons.wikimedia.org/wiki/Fil...

Milky Way, Andromeda, Triangulum Encounter Visualization - Hammer-Aitoff Projection
Visualization Credit: F. Summers (STScI)
Simulation Credit: G. Besla (Columbia University), and R. van der Marel (STScI)

Illustrative Sky Views of the Milky Way-Andromeda Collision
Credit: NASA, ESA, Z. Levay, R. van der Marel, and G. Bacon (STScI), T. Hallas, and A. Mellinger
http://hubblesite.org/newscenter/arch...

Andromeda Constellation
Credit: A. Fujii (used with permission)
http://www.davidmalin.com/fujii/fujii...

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