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Clash of the Titans: Hubble’s Universe Unfiltered

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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_astronomy/hubbles_universe_unfiltered/episodes/17

* Notes

NASA’s Hubble Shows Milky Way is Destined for Head-on Collision with Andromeda Galaxy:
http://hubblesite.org/newscenter/archive/releases/2012/20/

Milky Way drawing
Credit: NASA, JPL-Caltech, R. Hurt (SSC-Caltech)
http://www.spitzer.caltech.edu/images/1923-ssc2008-10a-A-Roadmap-to-the-Milky-Way

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

Large Magellanic Cloud
Credit: David Malin
Copyright: Australian Astronomical Observatory (used with permission)
http://www.aao.gov.au/images/captions/uks014.html

Small Magellanic Cloud
Credit: NOAO/AURA/NSF
http://www.noao.edu/image_gallery/html/im0563.html

Andromeda Galaxy
Credit: Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF
http://www.noao.edu/image_gallery/html/im0424.html

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/html/im0775.html

Local Group Schematic
Credit: Christine Godfrey

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

Neon Pizza Sign
http://free-images-etc.rb-d.com/wp-content/uploads/IMG_9043.jpg

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

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

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/archive/releases/2008/16/image/ah/

Barnard’s Star Proper Motion
Credit: Steve Quirk
http://commons.wikimedia.org/wiki/File:Barnard2005.gif

Stellar Deep Field
Credit: NASA, ESA and T.M. Brown (STScI)
http://hubblesite.org/newscenter/archive/releases/2003/15/image/a/

Milky Way and Andromeda Collision Scenario
Credit: NASA, ESA, and A. Feild and R. van der Marel (STScI)
http://hubblesite.org/newscenter/archive/releases/2012/20/image/m/

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/archive/releases/2012/20/video/j/

Music “Stars”
Credit: Shamil Elvenheim (CC-BY-NC-SA 3.0)
http://freemusicarchive.org/music/Shamil_Elvenheim/strolling_through_electronic_spaces/13_-_Shamil_Elvenheim_-_Stars

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

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/archive/releases/2012/20/video/d/

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

iPhone 5 International Giveaway April 2013

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My iPhone 5 Giveaway for the month of April 2013.
Rules:
1. Subscribe
2. Comment Once

LIKE MY FACEBOOK: http://www.facebook.com/pages/TechRax/192119757502890
LIKE MY TWITTER: https://twitter.com/TechRax

Winner will be announced at the end of April by Random.org

Tonight’s Sky: April 2013

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“Tonight’s Sky” provides backyard stargazers with a monthly guide to the northern hemisphere’s skywatching events. In April, look for Jupiter and Saturn in the evening skies, investigate the Big Dipper and Leo the Lion, and catch some “falling stars” from the Lyrid meteor shower.

“Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at HubbleSite.org.

Visit Tonight’s Sky on HubbleSite.
http://hubblesite.org/explore_astronomy/tonights_sky/

Behind the Webb: On the Wings of Webb (Episode 18)

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The 21-foot-wide primary mirror of the Webb Telescope is so large that it will have to fold up to fit into a rocket and be launched to space. Join host Mary Estacion as she travels to ATK in Magna, Utah, where the mirror’s foldable backplane “wings” have been constructed.

“Behind the Webb” is an ongoing series that follows the construction of the Webb Space Telescope, Hubble’s successor. Find more episodes at Hubblesite.org.

“Behind the Webb” archive:
http://webbtelescope.org/webb_telescope/behind_the_webb/archive/

Behind the Webb: Roundup of JWST at SXSW (Special Edition)

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The South by South festival in Austin, Texas, played host to a new guest this year, a full-scale model of the James Webb Space Telescope. The tennis-court-sized replica anchored a NASA exhibit that included interactive activities and talks on astronomy. The three-day event was capped off by the breaking of a Guinness World Record for the largest outdoor astronomy lesson.

“Behind the Webb” is an ongoing series that follows the construction of the Webb Space Telescope, Hubble’s successor. Find more episodes at Hubblesite.org.

“Behind the Webb” archive:
http://webbtelescope.org/webb_telescope/behind_the_webb/archive/

Behind the Webb: Behind the Breaking of a Guinness Record (Special Edition)

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At this year’s South by Southwest festival in Austin, Texas, the Guinness World Record for the largest outdoor astronomy class was broken. Capturing the tension and excitement leading up to the event, this video also shows what it takes to break a world record.

“Behind the Webb” is an ongoing series that follows the construction of the Webb Space Telescope, Hubble’s successor. Find more episodes at Hubblesite.org.

“Behind the Webb” archive:
http://webbtelescope.org/webb_telescope/behind_the_webb/archive/