1. ESOcast 46: Catching Light -- Special 50th anniversary episode #6

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    ESOcast 46 is the sixth special episode of this series. It describes how state-of-the-art cameras and spectrographs help ESO’s powerful telescopes collect and analyse the faint light from the distant Universe. Without these instruments, ESO’s eyes on the sky would be blind. Today’s astronomical images are very different from those from the 1960s. Back then, astronomers used large photographic glass plates, which were not very sensitive and hard to handle. Nowadays, ESO’s telescopes use some of the largest and most sensitive electronic detectors in the world. They catch almost every cosmic photon and recover almost every possible bit of information. For instance, the VLT Survey Telescope’s camera — OmegaCAM — has 32 detectors, which team up to produce spectacular images of the Universe, each with an impressive 268 million pixels. But astronomy is not only about taking breathtaking images. Astronomers are always after as much information as possible so they need to dissect the starlight into its component colours to study its composition. Spectroscopy is one of the most powerful tools in astronomy and ESO’s telescopes also have some of the world’s most powerful spectrographs, such as the powerful X-shooter at the Very Large Telescope. Spectroscopy allows astronomers to infer important properties of the stars, such as the chemical elements they contain, their temperatures, motions, and even their ages. Moreover, they can study the atmospheres of exoplanets orbiting distant stars or newborn galaxies at the edge of observable Universe. Watch this episode to discover more about ESO’s state-of-the-art astronomical instruments. More information and download-options: http://www.eso.org/public/videos/esocast46a/ Credit: An ESO production Directed by: Lars Lindberg Christensen Art Direction, Production Design: Martin Kornmesser Producer: Herbert Zodet Written by: Govert Schilling 3D animations and graphics: Martin Kornmesser & Luis Calçada Editing: Martin Kornmesser Cinematography: Herbert Zodet & Peter Rixner Sound engineer: Cristian Larrea Audio Mastering: Peter Rixner Host & Lead Scientist: Dr J (Dr Joe Liske, ESO) Narration: Sara Mendes da Costa Soundtrack & Sound Effects: movetwo — Axel Kornmesser & Markus Löffler & zero-project (zero-project.gr) Proof reading: Anne Rhodes Technical support: Lars Holm Nielsen, Raquel Yumi Shida & Mathias Andre DVD Authoring: Andre Roquette Executive producer: Lars Lindberg Christensen Footage and photos: ESO Christoph Malin (christophmalin.com) Babak Tafreshi/TWAN Stéphane Guisard (eso.org/~sguisard) José Francisco Salgado (josefrancisco.org) Alexandre Santerne Nick Risinger (skysurvey.org) Martin Kornmesser Herbert Zodet J. Dommaget/J. Boulon/J. Doornenbal/W. Schlosser/F.K. Edmondson/A. Blaauw/Rademakers/R. Holder Mineworks Daniel Crouch/Rare Books (crouchrarebooks.com) Getty Images Royal Astronomical Society/Science Photo Library Jay M. Pasachoff Chris de Coning/South African Library/Warner-Madear Africana Museum/Warner Leiden University G. Brammer Mauricio Anton/Science Library NASA/Spitzer Science Center/R. Hurt VISTA/J. Emerson Digitized Sky Survey 2 MPE/S. Gillessen/M. Schartmann PIONIER/IPAG Rainer Lenzen/MPIA Heidelberg West-Eastern Divan Orchestra in Berlin by KolBerlin Davide De Martin Cambridge Astronomical Survey Unit IDA/Danish 1.5 m/R. Gendler and C. Thöne Mario Nonino, Piero Rosati and the ESO GOODS Team ALMA (ESO/NAOJ/NRAO) The NASA/ESA Hubble Space Telescope Matthias Maercker Igor Chekalin Hans-Hermann Heyer Edmund Janssen Luis Calçada Scott Kardel Tom Jarrett, Kevin Govender Sergey Stepanenko ESA NASA IAU/IYA2009 T. Preibisch R. Fosbury (ST-ECF) INAF-VST/OmegaCAM OmegaCen/Astro-WISE/Kapteyn Institute A. Fujii J.-B. Le Bouquin et al. D. Coe (STScI)/J. Merten (Heidelberg/Bologna) Gemini Observatory/NRC/AURA/Christian Marois et al. M. Janson Jean-Luc Beuzit IAC (SMM) and ESPRESSO consortium T.M. Brown (STScI) UltraVISTA team, TERAPIX/CNRS/INSU/CASU World Wide Telescope

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    • Zooming in on the globular star cluster Messier 55

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      This zoom sequence starts with a wide view of the spectacular Milky Way. We then close in on a fuzzy spot that proves to be a very rich star cluster, the globular Messier 55. In the final sequence we see a very detailed view of Messier 55 in infrared light from the VISTA telescope at ESO’s Paranal Observatory. Credit: ESO and Digitized Sky Survey 2/J. Emerson/VISTA/Nick Risinger (skysurvey.org) Acknowledgment: Cambridge Astronomical Survey Unit Music: Compass by Disasterpeace (www.disasterpeace.com) More information and download-options: http://www.eso.org/public/videos/eso1220a/

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      • Artist’s impression of glycolaldehyde molecules

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        A team of astronomers has found molecules of glycolaldehyde — a simple form of sugar — in the gas surrounding a young binary star, with similar mass to the Sun, called IRAS 16293-2422. This is the first time sugar been found in space around such a star, and the discovery shows that the building blocks of life are in the right place, at the right time, to be included in planets forming around the star. The astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to detect the molecules. This video shows an artist’s impression of glycolaldehyde molecules, showing glycolaldehyde’s molecular structure (C2H4O2). Carbon atoms are shown as grey, oxygen atoms as red, and hydrogen atoms as white. Credit: ESO/L. Calçada More information and download-options: http://www.eso.org/public/videos/eso1234b/

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        • ESOcast 20: Richest planetary system discovered

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          Astronomers using ESO instruments have discovered a remarkable extrasolar planetary system that has some striking similarities to our own Solar System. At least five planets are orbiting the Sun-like star HD 10180, and the regular pattern of their orbits is similar to that observed for our neighbouring planets. One of the new extrasolar worlds could be only 1.4 times the mass of the Earth, making it the least massive exoplanet ever found. This video podcast explains how these faraway planets were detected and exactly what we know about them. This episode is available for download (various formats available!) on: http://www.eso.org/public/videos/eso1035a/

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          • ESOcast 36: ALMA Opens Its Eyes

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            The most complex ground-based astronomy observatory in the world, the Atacama Large Millimeter/submillimeter Array (ALMA), has officially opened for astronomers. The first released image, from a telescope still under construction, reveals a view of the Universe that cannot be seen at all by visible-light and infrared telescopes. Credits and download options are available on: http://eso.org/public/videos/eso1137a/

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            • ESO Timelapse Compilation

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              A compilation of timelapses taken from each of ESO's three unique observing sites during the ESO Ultra HD Expedition. Watch this video in 4K here: http://youtu.be/mfBxBSHPaME More information and download options: http://www.eso.org/public/videos/uhd_timelapse_compil/ Credit: ESO. Music: John Dyson

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              • Zooming in on an eclipsing binary in the Large Magellanic Cloud

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                This zoom sequence starts with a very broad view of the southern skies and closes in on one of the closest galaxies to the Milky Way — Large Magellanic Cloud. Within this galaxy several very faint and rare cool eclipsing binary double stars have been identified. As the two component stars in these binaries orbit each other they pass in front of one another and their combined brightness, seen from a distance, decreases. By studying how the light changes, and other properties of these systems, astronomers can measure the distances to eclipsing binaries very accurately. A long series of observations of these objects has now led to the most accurate determination so far of the distance to the Large Magellanic Cloud — a crucial step in the determination of distances across the Universe. More information and download-options: http://www.eso.org/public/videos/eso1311a/ Credit: ESO/Nick Risinger (skysurvey.org)/R. Gendler/L. Calçada. Music: movetwo

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                • ESOcast 53: Chile Chill 3

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                  This is the third installment of Chile Chill, a type of ESOcast designed to offer a calm experience of the Chilean night sky and ESO's observing sites, undisturbed by facts or narration. In this episode we are treated to stunning views of the Atacama Desert, including the conical volcano Licancabur and slow moonrises over the Andes. More information and download-options: http://www.eso.org/public/videos/esocast53a/ Credit: ESO. Editing: Herbert Zodet. Web and technical support: Mathias André and Raquel Yumi Shida. Music: John Stanford (johnstanfordmusic.com). Footage and photos: ESO, Christoph Malin (christophmalin.com), Babak Tafreshi (twanight.org), Stéphane Guisard (www.eso.org/~sguisard), José Francisco Salgado (josefrancisco.org), ALMA (ESO/NAOJ/NRAO), L. Calçada, M. Kornmesser, Nick Risinger (skysurvey.org), Digitized Sky Survey 2. Directed by: Herbert Zodet. Executive producer: Lars Lindberg Christensen.

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                  • ESOcast 62: Three planets found in star cluster

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                    In this ESOcast we look at how astronomers have used ESO's HARPS planet hunter in Chile, along with other telescopes around the world, to discover three planets orbiting stars in the cluster Messier 67. Although more than one thousand planets outside the Solar System are now confirmed, only a handful have been found in star clusters. Remarkably one of these new exoplanets is orbiting a star that is a rare solar twin — a star that is almost identical to the Sun in all respects. More information and download options: http://www.eso.org/public/videos/eso1402a/ Subscribe to our iTunes channel here: https://itunes.apple.com/podcast/esocast-hd/id295471183?mt=2 Credit: ESO. Visual design and editing: Martin Kornmesser and Luis Calçada. Editing: Herbert Zodet. Web and technical support: Mathias André and Raquel Yumi Shida. Written by: Phillip Keane and Richard Hook. Music: Toomas Erm. Footage and photos: ESO, Luis Calçada, Digitized Sky Survey 2, Martin Kornmesser, ESA/Hubble, Alexandre Santerne and Nick Risinger (skysurvey.org). Directed by: Herbert Zodet. Executive producer: Lars Lindberg Christensen.

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                    • Zooming in on Fomalhaut and its dusty disc

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                      This video sequence starts with a wide-field view of the sky around the star Fomalhaut in the constellation of Piscis Austrinus (The Southern Fish). Fomalhaut is the brightest star in the constellation and one of the brightest stars known to have an orbiting planet. It lies about 25 light-years from the Earth and is surrounded by a huge disc of dust. The final view of this video shows a new ALMA image of the disc (orange) and the new results from ALMA have given astronomers a major breakthrough in understanding a nearby planetary system and provided valuable clues about how such systems form and evolve. Note that ALMA has so far only observed a part of the ring. The underlying blue picture shows an earlier picture obtained by the NASA/ESA Hubble Space Telescope. Credit: ALMA (ESO/NAOJ/NRAO). Visible light image: the NASA/ESA Hubble Space Telescope A. Fujii/Digitized Sky Survey 2. Acknowledgment: Davide De Martin (ESA/Hubble) More information and download options: http://www.eso.org/public/videos/eso1216a/

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