1. About Time, Space and Water


    from Lightcurve Films / Added

    130 Plays / / 0 Comments

    "About Time, Space and Water" is one of a series of educational videos about astronomy. Dr. Alain Doressoundiram, planetary scientist at the Paris Observatory, explains about water in the Universe. See all videos in the series at https://vimeo.com/album/2398838. For the original videos in french and additional educational resources (in french), please visit http://ufe.obspm.fr/-Astronomie-Astrophysique-en-videos- Video produced by the Paris Observatory (http://www.obspm.fr/) with the support of UNISCIEL (www.unisciel.fr) and UVED (www.uved.fr).

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    • Above The Mysterious Fog Over the Milky Way


      from Deep Astronomy / Added

      5,693 Plays / / 0 Comments

      On November 9th, 2010, a group of scientists at NASA's Fermi Gamma-Ray Space Telescope announced the discovery of two bubbles of energy erupting from the center of our galaxy. The structure spans more than half of the visible sky, from the constellation Virgo to the constellation Grus, and it may be have been around for millions of years. These bubbles extend 25,000 light years from each side of our galaxy and contain the energy equivalent of 100,000 supernovae.

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      • A Breathtaking View of the Milky Way from La Palma


        from Randy Hoffmann / Added

        2,724 Plays / / 8 Comments

        This timelapse was filmed while on a hiking trip to the island of La Palma, Canary Islands in the summer of 2013. I spent two nights camping along the GR131 Trail atop the crest of the Caldera de Taburiente, not far from the Roque de Los Muchachos Observatories on August 6th and 9th. Please note that wild camping is officially not permitted on the island. Do so at your own risk. It is imperative that one use only red light at night anywhere near the observatories and in a direction away from (even deeper red filtered light if illuminating foreground objects in photographs, as used in the first sequence). The peak I chose was close yet far away enough to be discreet and unobtrusive. It is strictly forbidden to camp, let alone be on Roque de Los Muchachos from 2000 - 0800 hrs unless associated or given specific authority by the IAC. This short movie consists of four timelapse sequences, two shot per night. Sky conditions were favourable with no moon and minimal turbulence. The only drawback was the orange glow near the horizon in the direction of the Caldera caused by the Calima phenomenon. Weather conditions were tolerable with light winds and cool temperatures. The view of the Milky Way was breathtaking ! The growing intensity of the Perseid Meteor Shower as seen especially in the fourth sequence near morning twilight was certainly a treat. Shooting these celestial timelapses took a lot of planning and patience. On the first night I was already tired and dizzy after hiking 24 km along the GR131 Trail all day from El Pilar (https://vimeo.com/74318509) with a heavy backpack filled with camera / timelapse gear. Thanks to my wife Brenda for all her patience, inspiration and helping me carry our supplies and my equipment. The second night my wife dropped me off along the road leading to the observatories, where I then hiked a short distance to the nearby peak. I did not get a wink of sleep either night as I was worried about equipment malfunction, battery drainage and condensation on the lens. I became totally immersed in the scene and situ however, leaving me in a contemplative mood and just simply astonished. Equipment: Canon 550d Sigma 10mm f/2.8 fish-eye lens Pocketslider dolly (Pocketslider.de) Hahnel Giga T2 Pro intervalometer Velbon QHD-53D tripod and MeFoto backpacker tripod Settings: Manual, ISO 1600, f/2.8, 25 second exposures, 15 second intervals. It was a toss up between high ISO and exposure to keep graininess to an acceptable minimum ... and as for my antiquated and now abused 550d combined with the Sigma fish-eye ... it still did an o.k. job I think :-) Next time ... full frame body !! A total of 1600 RAW files edited and processed using Lightroom, LRTimelapse and Final Cut Pro. Music: "Love and Loss" by Two Steps from Hell. The Island of La Palma is beautiful in all aspects. It's a great place to hike and perfect for viewing and photographing the heavens. The night skies are protected from light, radio and air traffic pollution according to the "Sky Act" (http://www.starlight2007.net/pdf/SLeng.pdf) A timelapse I shot of La Palma can be seen at https://vimeo.com/72705307 A video of our trip to the Roque de Los Muchachos Observatory and tour of the GranTeCan Telescope can be seen at https://vimeo.com/73063516 Videos of our hikes can be seen at https://vimeo.com/album/2498182 Cheers!

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        • A Brief Tour of the Universe


          from Scott Ferguson / Added

          224 Plays / / 1 Comment

          A compilation of various objects recorded with a modified Samsung SDC-435 and 8" LX200 Classic Schmidt-Cassegrain Telescope.

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          • Acadia in Twilight


            from Babak Tafreshi / Added

            195 Plays / / 0 Comments

            Timelapse motion of Evening twilight at Acadia National Park, Maine, northeastern United States. A cruise ship in the Frenchman Bay near the Porcupine Islands and the town of Bar Harbor is sailing to the Atlantic Ocean. The footage is available to license, in high quality full HD1080p (and 2k or 4k). Babak Tafreshi (btafreshi@twanight.org).

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            • Acadia National Park Moonrise


              from Christopher Georgia / Added

              199 Plays / / 1 Comment

              6 hour time lapse from dark skies into moonrise captured on a 6ft. motion dolly passing through a piece of drift wood.

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              • Accelerating Universe - Adam Riess, John Hopkins University and Space Telescope Science Institute


                from Kavli Frontiers of Science / Added

                80 Plays / / 0 Comments

                Seeing Dark Energy Adam Riess, John Hopkins University and Space Telescope Science Institute What is dark energy? Dark energy is believed to be a component of the Universe whose repulsive gravity is presently accelerating the expansion of the Universe. Although it comprises the bulk of the mass-energy of the Universe, its nature is not well understood. Albert Einstein originally suggested its existence about 80 years ago. What is a supernova, and why is it an important tool in gauging the universe’s behavior? A supernova is the explosive death of a star, which unleashes a burst of light through the cosmos. These violent deaths occur once every 100 years in a typical spiral galaxy like our Milky Way. Some astronomers call some types of supernovas nature’s “60-watt light bulbs” because they burn at nearly the same brightness. By measuring their predictable light output, astronomers can estimate how far they are from Earth. Many of them are billions of years away. But supernovas blaze so brightly that they can be seen far across space. That’s why some astronomers also call them “cosmic mile markers”: their light provides important information about the universe’s behavior. Supernovas illuminate the dark corners of space, allowing astronomers to map the history of the universe’s expansion. How was the discovery of dark energy made? Two teams of scientists measured about 100 supernovae to gauge changes in the expansion rate. They expected to find the expansion rate to be slowing down, but were stunned to find it speeding up! Link: http://www-int.stsci.edu/~ariess/index.htm

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                • Accelerating Universe - Rachel Bean, Cornell University


                  from Kavli Frontiers of Science / Added

                  60 Plays / / 0 Comments

                  Accelerating Universe Rachel Bean, Cornell University The last decade has seen dramatic improvements in our understanding of the universe, with cosmological observations allowing us to test Einstein's theory of gravity, General Relativity, which relates the matter content of the universe to how the universe's size evolves. Recent observations have shown that the universe's current behavior is extremely puzzling, rather than its expansion slowing as Einstein's theory predicts, it appears to be speeding up. We introduce the cosmological model that observations are investigating, and discuss how recent observations have presented fundamental challenges to our understanding of gravity and particle physics.

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                  • Accelerating Universe - Sean Carroll, California Institute of Technology


                    from Kavli Frontiers of Science / Added

                    167 Plays / / 0 Comments

                    The Accelerating Universe: Enigmas and Nostrums. Sean Carroll, California Institute of Technology The universe is accelerating, and we don't know why. The simplest possibility goes back to Einstein: the possibility of a cosmological constant, or "vacuum energy." This is simply the idea that empty space itself has an inherent energy density, which remains absolutely constant throughout space and time. It's an idea that fits the data, but introduces a number of fine-tuning problems, which encourage cosmologists to look further. Another possibility is dynamical dark energy -- a source which is almost constant, but not quite, through space and time. Finally, we have the possibility that there isn't any new energy source of any kind; rather, our accepted notions of how gravity works (Einstein's general relativity) break down on cosmological scales. All of these ideas have their advantages and their drawbacks; the good news is that they make different predictions for cosmological observables. The next generation of experiments should go a long way towards pinning down the reason why the universe is accelerating.

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                    • Accross the Universe


                      from Rafael Brom / Added

                      1 Play / / 0 Comments

                      Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him. - 1 Corinthians 2:9 Rafael Brom Record Albums on iTunes: https://itunes.apple.com/us/artist/rafael-brom/id152962016 Albums of Rafael Brom on Amazon.com http://www.amazon.com/Rafael-Brom/e/B001LHBFBY/works/ref=ntt_mus_teaser? Artist Overview of Rafael Brom on Amazon.com http://www.amazon.com/Rafael-Brom/e/B001LHBFBY/ref=ep_artist_tab_glance The Best of Rafael Brom - Volume IV on marianland.com http://www.marianland.com/music/bestofrafaelvolume4.html Rafael Brom Official Website http://www.rafaelbrom.com/ Cosmotone Music (ASCAP) http://www.cosmotonemusic.com/ Cosmotone Records http://www.cosmotonerecords.com/

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