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Astronomy & Astrophysics (A&A)

Astronomy & Astrophysics (A&A)
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Picture of the Week In this new Hubble image, we can see an almost face-on view of the galaxy NGC 1084. At first glance, this galaxy is pretty unoriginal. Like the majority of galaxies that we observe it is a spiral galaxy, and, as with about half of all spirals, it has no bar running through its loosely wound arms. However, although it may seem unremarkable on paper, NGC 1084 is actually a near-perfect example of this type of galaxy — and Hubble has a near-perfect view of it. NGC 1084 has hosted several violent events known as supernovae — explosions that occur when massive stars, many times more massive than the Sun, approach their twilight years. Astronomers have noted five supernova explosions within NGC 1084 over the past half century. The most recent explosion, 2012ec, was detected at the end of NGC 1084’s top right arm in August 2012. A version of this image was entered into the Hubble's Hidden Treasures image processing competition by Flickr user Brian Campbell (Sinickel).

About the Kavli Prize “The Kavli Prizes recognize three scientific areas we believe are exceptionally exciting in the 21st Century and at the brink of remarkable discoveries – astrophysics, nanoscience and neuroscience. Created to honor, support and recognize scientists whose work have had a profound impact in these areas, through these Prizes we also hope to raise people's awareness of the benefits of basic science in their own lives. Science prizes for the 21st century, the Kavli Prizes recognize scientists for their seminal advances in three research areas: astrophysics, nanoscience and neuroscience. Jan Fridthjof Bernt, President of the Norwegian Academy of Science and Letters. The Kavli Prizes are presented in cooperation and partnership with the Norwegian Academy of Science and Letters, and the Norwegian Ministry of Education and Research. To learn more about the Kavli Prize, please go to Kavli Prize in Astrophysics Kavli Prize in Nanoscience Kavli Prize in Neuroscience

Atmosphere composition diagram MUSES : Greek Goddesses of Music, Poetry & the Arts | Mythology, Mousai, w/ pictures THE MOUSAI (Muses) were the goddesses of music, song and dance, and the source of inspiration to poets. They were also goddesses of knowledge, who remembered all things that had come to pass. Later the Mousai were assigned specific artistic spheres: Kalliope, epic poetry; Kleio, history; Ourania, astronomy; Thaleia, comedy; Melpomene, tragedy; Polyhymnia, religious hymns; Erato, erotic poetry; Euterpe, lyric poetry; and Terpsikhore, choral song and dance. In ancient Greek vase painting the Mousai were depicted as beautiful young women with a variety of musical intruments. There were two alternative sets of Muses: the three or four Mousai Titanides and the three Mousai Apollonides. Homer, Iliad 2. 597 ff (trans. Homer, Odyssey 8. 457 ff (trans. Hesiod, Theogony 1 ff (trans. Hesiod, Theogony 915 ff : "And again, he [Zeus] loved Mnemosyne (Memory) with the beautiful hair: and of her the nine gold-crowned Mousai (Muses) were born who delight in feasts and the pleasures of song."

Science Clarified How to... photo guides : Astronomy Photographer of the Year : Exhibitions : What's on Longing to become an astrophotographer but unsure how it's done and what equipment you need? Already taking pictures of the night sky but looking for some tips and advice? On these pages you’ll find videos from some of the winners of the competition explaining how they got their shot, as well as step-by-step guides from members of our Astronomy Photographer of the Year Flickr group on how to get great results, from getting the right gear through to processing. Download the guides as PDFs: aurora | comets | deep space | the Moon | star trails Download our schools guide to observing and photographing the night sky The Day the Earth Smiled On July 19, 2013, in an event celebrated the world over, NASA's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings -- and, in the background, our home planet, Earth. With the sun's powerful and potentially damaging rays eclipsed by Saturn itself, Cassini's onboard cameras were able to take advantage of this unique viewing geometry. They acquired a panoramic mosaic of the Saturn system that allows scientists to see details in the rings and throughout the system as they are backlit by the sun. This mosaic is special as it marks the third time our home planet was imaged from the outer solar system; the second time it was imaged by Cassini from Saturn's orbit; and the first time ever that inhabitants of Earth were made aware in advance that their photo would be taken from such a great distance. This image spans about 404,880 miles (651,591 kilometers) across.

Travail d'Etude et de Recherche - L'environnement terrestre, les rayonnements cosmiques et leurs interactions L'environnement terrestre, les rayonnements cosmiques et leurs interactions Cet exposé a été réalisé de Mai à Juin 1996 à l'IUP GSI de Clermont-Ferrand par David BERNARD, Xavier DUMONCEAU et Vincent LAFON. Le but était de synthétiser en une trentaine de pages l'état des connaissances et des recherches sur un sujet donné : l'environnement terrestre, les rayonnements cosmiques et leurs interactions. Vous pouvez télécharger la version Adobe Acrobat de ce TER (attention : 1,13Mo) : ter.PDF Le titre est vaste, mais il impose une approche pluridisciplinaire. Etant donné l'évolution des découvertes scientifiques et des techniques de détection, nous avons, pour notre étude, décidés de privilégier les sources d'information récentes. Les informations recueillies par Internet n'étant pas suffisantes, nous nous sommes également appuyés sur des ouvrages de référence, notamment pour les chapitres sur la terre, sur l'environnement terrestre et sur les étoiles. 1.1. 1.2. Tab.1 Composition de l'air au sol

MUSES - Greek Mythology Link The violet-eyed MUSES delighted in feasts and the pleasure of song, Peace being their dearest friend. They discovered letters and the combination of these we call poetry. Near the topmost peak of Olympus, there are their dancing-places, and beside them the CHARITES and Himerus live in delight, but also Mount Helicon is known for being their haunt. The MUSES usually sing for the gods, but they are said to have sung on other special occasions such as the funeral of Achilles, and the weddings of both Peleus and Cadmus. Birth of the MUSES Before the times when Hera became Zeus' wife, the god, taking the form of a shepherd, consorted with Mnemosyne, whose domain is in the hills of Eleuther, lying with her nine nights. Dearest gods Some affirm that Hypnos (Sleep) is the god that is dearest to the MUSES, but Apollo is considered to lead the MUSES, being for that reason called Musegetes (leader of the MUSES) as an inscription states: The number of the MUSES Inspired but blind Blind but inspired

Physics Einstein's famous Theory of Relativity is described in simple non-mathematical terms. It is one of the great ideas of 20th Century science. The Quantum Theory is another great idea of 20th Century science. This is a brief introduction with no mathematics. A historical account of the discovery of the electromagnetic spectrum and its uses in Astronomy. Essays on astronomy, the study of the Universe. These links will open in a separate window PhysLink The latest physics news and links to lots of physics sites. Richard Dawkins This unofficial site contains quotes and writings from Richard Dawkins. Worksheet Library School resource site for various ages. Buy a research paper online written by professionals at - custom research writing service. Now you need not to worry, use our exam HP0-S30 exam product, 6001.1 certification material and ST0-099 practice exams and score highest marks.

Stellarium 2012 - 10 - Meet ESA, the space agency for Europe Meet ESA, the space agency for Europe 4.88 /5 ( 57 votes cast) Rate this Video Currently 5 out of 5 Stars. Thank you for rating! You have already rated this page, you can only rate it once! Your rating has been changed, thanks for rating! Embed Code Details Meet ESA, the space agency for Europe English, French, German, Italian, Spanish, Czech Documentary You, together with your 500 million fellow citizens from ESA’s 20 European member nations, are the collective owners of one of the world’s leading space agencies. The European Space Agency is an intergovernmental organisation, a cooperative coming together of its Member States in their national interest and common good. This new video offers a quick introduction: Europe, meet ESA. Click on the tags to find the matching videos. Corporate Galileo , Mars Express , Planck , Vega Jean-Jacques Dordain , Thomas Reiter Ariane 5 , ATV , Cryosat 2 Satellite , EGNOS (European Geostationnary Navigation Overlay System) , GMES , Mars Express Orbiter , Soyuz launcher

Certaines sections (letters, atomic ; molecular and nuclear data ; astronomical instruments ; catalog and data) sont en accès libre, quelque soit l'année de parution.
Tous les articles de plus d'un an (à ce jour jusqu'à janvier 2013 vol.549) sont en accès libre

Sauf exception les articles plus récents (12 derniers mois) sont payants by astro_drillaudweb Jan 22