One of the big mysteries in astronomy is how galaxies grow and evolve over time. Collisions between galaxies are thought to be key events that shape their development. A stunning collection of 59 new images of colliding galaxies has been released to mark the 18th anniversary of the NASA/ESA Hubble Space Telescope. They give us a unique insight into how galaxies collide to form larger galaxies. Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen) Narration: Dr. J Design: Martin Kornmesser Web Technical Support: Lars Holm Nielsen Raquel Yumi Shida Cinematographer: Peter Rixner (www.perix.de) Script: Lars Lindberg Christensen, Raquel Yumi Shida Director: Lars Lindberg Christensen Acknowledgements for the images used in this Hubblecast: * Project lead: Lars Lindberg Christensen * Image processing: Davide de Martin (ESA/Hubble) and Zolt Levay (STScI) * Cosmetic cleaning: Amit Kapadia, Nuno Marques, Maximilian Kaufl (ESA/Hubble) * Colour correction and cosmetic adjustments: Zolt Levay (STScI) & Martin Kornmesser (ESA/Hubble) * HST Principle Investigator: A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook), and the PIs of Hubble Proposals 9735, 11091, 6276, 10575, 7129, 7467, 6438. * Astronomical processing pipeline: The STScI ACS team * Data Archiving and pipeline implementation: The ESO/ST-ECF Archive and the STScI Archive Download this video on: http://www.spacetelescope.org​/videos/html/heic0810a.html

• 06/03/09
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For astronomers, Omega Centauri has been an outcast amongst globular clusters for a long time. A new result obtained by the NASA/ESA Hubble Space Telescope and the Gemini Observatory provides a surprising explanation for Omega Centauri’s peculiarities. Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen), R. Gendler Narration: Dr. Robert Fosbury Design: Martin Kornmesser Web Technical Support: Lars Holm Nielsen Raquel Yumi Shida Cinematographer: Peter Rixner (www.perix.de) Script: Lars Lindberg Christensen, Raquel Yumi Shida Director: Lars Lindberg Christensen Download this episode on: http://www.spacetelescope.org​/videos/html/heic0809a.html

• 06/03/09
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The NASA/ESA Hubble Space Telescope has made the first detection ever of an organic molecule in a planet orbiting another star. This breakthrough is an important step in eventually identifying signs of life on a planet outside our Solar System. Download this video on: http://www.spacetelescope.org​/videos/html/heic0807a.html

• 06/03/09
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New Hubble observations of the massive globular cluster NGC 2808 provide evidence that it has three generations of stars instead of one as current theories predict. Read more on: http://www.spacetelescope.org​/news/html/heic0708.html

• 06/03/09
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An international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a ghostly ring of dark matter formed long ago during a colossal collision between two galaxy clusters. This is the first time that dark matter has been found with a distribution that differs substantially from the distribution of ordinary matter. Read more on: http://www.spacetelescope.org​/news/html/heic0709.html

• 06/03/09
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Have you ever wondered why some telescopes are launched into space while others are built on remote mountain tops? What is actually the best for astronomy? Here we provide a ringside view of the fight for the elusive photons from deep space - is it a battle of the telescope giants? Read more on: http://www.spacetelescope.org​/videos/html/hubblecast06a.html​

• 06/03/09
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The NASA/ESA Hubble Space Telescope has uncovered magnificent sections of the Veil Nebula - the shattered remains of a supernova that exploded some 5-10,000 years ago. The new Hubble images provide beautiful views of the delicate, wispy structure resulting from this cosmic explosion. Read more on: http://www.spacetelescope.org​/news/html/heic0712.html

• 06/03/09
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By scrutinising the Hubble Ultra Deep field - the deepest image of the sky ever made - the NASA/ESA Hubble Space Telescope and the NASA Spitzer Space Telescope have joined forces to discover nine of the smallest, faintest, most compact galaxies ever observed in the distant Universe. Read more on: http://www.spacetelescope.org​/news/html/heic0714.html

• 06/03/09
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The NASA/ESA Hubble Space Telescope has captured a spectacular image of NGC 3603, a giant nebula hosting one of the most prominent massive young clusters in the Milky Way. This is a splendid location for continued studies of stellar birth in star forming regions. Read more on: http://www.spacetelescope.org​/news/html/heic0715.html

• 06/03/09
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We live in a Universe of unimaginable scale and almost incomprehensible beauty. How is the light from the Universe transformed into the images that have inspired generations by making the Universe come to life? More on: http://www.spacetelescope.org​/videos/html/hubblecast10a.html​

• 06/03/09
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The galaxy Messier 74 lies at a distance of over 30 million light years. In this latest image from the NASA/ESA Hubble Space Telescope the enormous swirls of this stunning spiral galaxy arc across space, adorned with glowing pink regions of hydrogen gas and lit by the pale blue light of millions of newly formed stars. More on: http://www.spacetelescope.org​/videos/html/heic0719a.html

• 06/03/09
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Using the NASA/ESA Hubble Space Telescope, astronomers have found the first clear evidence of high altitude haze or clouds in the atmosphere of an extrasolar planet. This discovery reveals a deeper understanding of the class of giant planets that astronomers call 'hot Jupiters'. More on: http://www.spacetelescope.org​/videos/html/heic0720a.html

• 06/03/09
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The NASA/ESA Hubble Space Telescope has captured a new image of the galaxy NGC 1132 which is most likely to be a “cosmic fossil” – the aftermath of an enormous multi-galactic pile-up, where the carnage of collision after collision has built up a brilliant but fuzzy giant elliptical galaxy far outshining typical galaxies.

• 06/03/09
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Hubble has delivered an unrivalled snapshot of the nearby barred spiral galaxy NGC 1672. This remarkable image provides a high-definition view of the galaxy's large bar, its fields of star-forming clouds and its dark bands of interstellar dust.

• 06/03/09
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The NASA/ESA Hubble Space Telescope celebrates its 17th birthday with one of the largest panoramic images ever taken. The violent stellar fireworks of the Carina Nebula. Read more on : http://www.spacetelescope.org​/news/html/heic0707.html

• 06/03/09
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