A S T R O L A B O . com | Yatoutskifo pour l'astro Les dix vortexs de notre planète Il y a déjà mille ans que les Japonais ont conscience de cette zone dangereuse. Elle sont appelés Main Umi : la Mer du Diable. Pendant des années les marins ont attribué les pertes de bateaux de pêche répétées à des démons marins, des dragons qui montent à la surface de l’océan pour entraîner les bateaux ainsi que leurs membres d’équipage dans les fond sous-marins. Le Triangle du Dragon suit une ligne qui va depuis l’ouest du Japon, au nord de Tokyo, jusqu’à la pointe du Pacifique et elle retourne par l’est, en passant par les Îles Ogasawara et Guam pour monter, de nouveau, vers le Japon. tout comme celui des Bermudes, il forme une zone triangulaire. world VORTEX Il s’agit d’une zone de grande activité séismique, avec un fonds marin dans lequel la transformation continue et tombes à 12.000 mètres de profondeur. Des îlots et des masses de terre émergent et disparaissent avant de pouvoir être dessinées sur des cartes. Il y aurais de nombreux témoins d’ovni dans cette zone du Pacifique. 1.
Detailed age map shows how Milky Way came together -- ScienceDaily Using colors to identify the approximate ages of more than 130,000 stars in the Milky Way's halo, Notre Dame astronomers have produced the clearest picture yet of how the galaxy formed more than 13.5 billion years ago. Astrophysicist Daniela Carollo, research assistant professor in the Department of Physics at the University of Notre Dame, and Timothy Beers, Notre Dame Chair of Astrophysics, along with research assistant professor Vinicius Placco and their colleagues published their findings in Nature Physics, including a chronographic (age) map that supports a hierarchical model of galaxy formation. That model, developed by theoreticians over the past few decades, suggests that the Milky Way formed by merging and accretion of small mini-halos containing stars and gas, and that the oldest of the Milky Way's stars are at the center of the galaxy and younger stars and galaxies merged with the Milky Way, drawn in by gravity over billions of years.
7 Space Simulators That Let You Explore the Universe Why should Mars rovers have all the fun? If you're tired of standing by while Curiosity rolls around up there, it's time to head out on the open exosphere and explore the universe for yourself — digitally, of course. SEE ALSO: 10 Must-Follow Tumblrs for Science Lovers A handful of excellent space simulators use real astronomical data to re-create the known universe in three dimensions. Fly through the galaxy at ludicrous speeds, map out humanity's best hope for extrasolar colonization, or mess with physics to create your own cosmic recipes. Some of these simulations stick to our own solar system, while others push the boundaries of our cosmological projections, procedurally generating star systems far beyond our galactic neighborhood. If you take any of these for a spin, let us know in the comments where you traveled.
Constellations disparues L'Abeille ( Apes )Cette constellation a subi plusieurs métamorphoses avant de disparaître. C'est l'astronome néerlandais Petrus Plancius qui, en 1612, permet à l'insecte de voler entre le Bélier et le Triangle. En 1624, Jakob Bartsch la transforme en Guêpe. Puis Johannes Hevelius en fait une Mouche (voir à ce nom).A noter que l'actuelle constellation australe de la Mouche s'est d'abord également appelée l'Abeille ! L'Aérostat ( Globus Aerostaticus ) Dessiné par l'astronome Joseph Jerôme Lefrançois de Lalande en 1798, cet aérostat a volé entre le Capricorne, le Microscope et le Poisson Austral. Antinoüs( Antinoüs )Cette constellation, que l'on trouve dans l'Almageste de Ptolémée, était étroitement associée à celle de l'Aigle, dont elle empruntait les étoiles australes. L'Atelier de Typographie ( Officina Typographica )Placé entre la Licorne et le Grand Chien par Johann Bode. CerbèreouLe Rameau et Cerbère ( Cerberus ou Cerberus et Ramus )Nommé ainsi par Hevelius. La SirèneVoir Ceneus.
Exploriments: Weight, Mass and Force of Gravity - Effect of Altitude and Comparison across Multiple Planets on the App Store No One Wants to Live in My 'Elysium'-Style Simulation Orbital Space Colony They will also be a pain in the ass to run. And I speak from experience on this because I briefly governed my own orbital colony. My time in command did not end well. Joe Strout gave me the opportunity to fail. Strout, who describes himself as “space nut,” was a childhood member of the L5 Society, an organization dedicated to advancing technology essential for building and launching orbital space colonies in the L5 orbit. Strout wasn’’t cool with that so he started programming. Part 1: Building your colony You start out by choosing whether or not to create something in low Earth orbit (which is better protected from radiation damage) or high Earth orbit (from which materials can be important from the moon for cheap). Deciding between LEO and HEO. This last part is important — because it can potentially throw your entire design into disarray. Gravity can be incredibly difficult to recreate in space. Oh — and all this also affects your budget. And that’s just the exterior. What a kingdom
Back-to-back flybys: Asteroids buzz Earth - Technology & science - Space - Space.com Two small asteroids zipped close by Earth in back-to-back flybys of the planet Monday and Tuesday. While both space rocks came well within the moon's orbit, they posed no danger to our planet, NASA scientists say. The newfound asteroid 2012 KP24 zoomed by Earth Monday, coming within 32,000 miles (51,000 kilometers) on its closest approach, according to astronomers at NASA's Asteroid Watch at the agency's Jet Propulsion Laboratory in Pasadena, Calif. "We'll have a close but very safe pass of asteroid 2012 KP24 May 28," scientists with NASA's Asteroid Watch program assured via Twitter. Asteroid Watch is part of the Near-Earth Object Office at NASA's Jet Propulsion Laboratory in Pasadena, Calif. The NEO office oversees the agency's efforts to detect, track and characterize potentially dangerous asteroids or comets that could zoom close to Earth. But this space rock is not the only one that paid a close visit to our planet this week.
Educational Resources « Astronomical Society A Sampling of Hands-On Astronomy Activities from the ASP Jump into hands-on astronomy with these classroom tested activities from a variety of ASP programs Surfing the Solar System Surf the web to find the answers to a fun solar system puzzle for the whole family K-12 Online Astronomy Activities Navigate the tangled web of activities on the internet with this annotated list, organized by subject Night Sky Network Astronomy Activities & Resources The Universe in the Classroom, a newsletter for teachers. Articles on Education from Mercury Magazine Hunt down some good ideas and resources in these archived articles from the “Education Newswire” and “Black Holes to Blackboards” departments of our membership magazine, Mercury. Other Articles on Education Selected Resource Guides Gather some great background reading from these annotated astronomical resource guides: Selected “Astronomy Beat” Columns Available to the Public Astronomy Education Review Looking for research in astronomy education?
Astronomie & Astrophysique Que se passe t-il réellement dans l'espace? ce que la NASA ne vous dira jamais! Le mécanisme à l'oeuvre dans la rotation et la forme des galaxies est un Trou Noir Super Massif, localisé directement au centre de la Voie Lactée qui contient environ 3,7 millions de masses solaires appelé Sagittarius A. Ces trous furent l’objet de nombreuses controverses jusqu’à ce que le télescope Hubble commence à en trouver au centre de chaque galaxie. À la surprise de la communauté scientifique, plusieurs Trous Noirs super massifs furent trouvés dans certaines galaxies. Aujourd’hui, nous savons que ces Trous Noirs tournent à une vitesse incroyable vu leur masse gigantesque. Qu’avons-nous découvert à leur sujet jusqu’à présent ? Ces Trous Noirs sont des points ayant des propriétés inhabituelles, appelées « Points de Singularité ». Une autre importante chose à connaître sur les Trous Noirs est qu’ils traversent des cycles qui durent des milliers d’années. Les images et vidéos montrent clairement ce jet cosmique, provenant du centre galactique. Est-ce que quelque chose a été détectée ?
New analysis adds support for a subsurface ocean on Pluto: Findings suggest other large objects in the Kuiper belt may also have liquid oceans beneath frozen shells -- ScienceDaily A liquid ocean lying deep beneath Pluto's frozen surface is the best explanation for features revealed by NASA's New Horizons spacecraft, according to a new analysis. The idea that Pluto has a subsurface ocean is not new, but the study provides the most detailed investigation yet of its likely role in the evolution of key features such as the vast, low-lying plain known as Sputnik Planitia (formerly Sputnik Planum). Sputnik Planitia, which forms one side of the famous heart-shaped feature seen in the first New Horizons images, is suspiciously well aligned with Pluto's tidal axis. "It's a big, elliptical hole in the ground, so the extra weight must be hiding somewhere beneath the surface. Impact basin Like other large basins in the solar system, Sputnik Planitia was most likely created by the impact of a giant meteorite, which would have blasted away a huge amount of Pluto's icy crust. "At that point, there is no extra mass at Sputnik Planitia," Nimmo explained. Moon anomalies
Alternance jour-nuit et ensoleillement de la Terre L'animation permet de comprendre le phénomène des saisons. L'axe de rotation de la Terre n'étant pas perpendiculaire au plan de l'écliptique, selon la période de l'année, les rayons du Soleil n'arrivent pas de la même manière à la surface de la Terre : c'est le phénomène des saisons. Aux équinoxes, les rayons du Soleil sont parallèles au plan de l'équateur ; entre les équinoxes, ils sont au-dessus (printemps, été) ou en-dessous (automne, hiver), avec un angle maximum aux solstices : le soleil se positionne alors au-dessus d'un des tropiques (tropique du Cancer au solstice d'été, tropique du Capricorne au solstice d'hiver. La déclinaison solaire correspond à l'angle que font les rayons solaires avec le plan de l'équateur. La limite de l'ombre (un grand cercle de la Terre) oscille donc de part et d'autre de la position à l'équinoxe. Le petit soleil montre l'endroit de la Terre où le Soleil est au zénith à cet instant. Mode d'emploi Cliquer-glisser sur la sphère pour changer l'angle de vue.
VISTA gigapixel mosaic of the central parts of the Milky Way Want to add this gigapan to your favorites? or now. now to add this Gigapan to a group gallery. now to add this Gigapan to a gallery. About This Gigapan Toggle Taken by esoepod Explore score Print Pricing $8.23 to $548.00 Size 8.82 Gigapixels Views Date added Oct 26, 2012 Date taken Categories Galleries Explore Celestial Images, unknown, Print Gallery | All, Education and Research, Science and Technology, Popular Gigapixel Images Competitions Tags astronomy, ESO, milkyway, galaxy, stars, vista, paranal, chile Description This striking view of the central parts of the Milky Way was obtained with the VISTA survey telescope at ESO’s Paranal Observatory in Chile. Credit: ESO/VVV Survey/D. Where in the World is this GigaPan? Toggle Sorry, this gigapan has no location information.