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Kunskapsbanken, Stjärnor och planeter - Unga Fakta Stjärnor och planeter Vår målsättning och syftet med Kunskapsbanken är att tillhandahålla bra, användarvänligt studiematerial, för att öka förståelsen för delar av rymden, för användning i skolår F-9. att med hjälp av webbsajten Unga Fakta kunna överföra kunskapen och delar av materialet till konkreta klassrumsprojekt i grupp eller enskilt. att med hjälp av text, bild och utskriftsvänliga förslag på klassrumsprojekt, skapa en kreativ skolmiljö med ett upplevelsebaserat lärande som både är lärorikt, utvecklande och roligt. Sajten om Stjärnor och planeter kan användas på många olika sätt. Vill man inte använda hela materialet går det självklart bra att endast nyttja delar av detsamma, t ex för vissa moment eller för ett fördjupningsarbete, eller kanske bara använda pysselsidorna som ett komplement till den traditionella undervisningen i klassrummet. Mycket nöje, önskar vi på Unga Faktas redaktion. Skolår I menyn till vänster finner du material och anvisningar för respektive ålderskategori.

USGS Scientific Investigations Map 3292: Geologic Map of Mars Abstract This global geologic map of Mars, which records the distribution of geologic units and landforms on the planet's surface through time, is based on unprecedented variety, quality, and quantity of remotely sensed data acquired since the Viking Orbiters. These data have provided morphologic, topographic, spectral, thermophysical, radar sounding, and other observations for integration, analysis, and interpretation in support of geologic mapping. In particular, the precise topographic mapping now available has enabled consistent morphologic portrayal of the surface for global mapping (whereas previously used visual-range image bases were less effective, because they combined morphologic and albedo information and, locally, atmospheric haze). Also, thermal infrared image bases used for this map tended to be less affected by atmospheric haze and thus are reliable for analysis of surface morphology and texture at even higher resolution than the topographic products.

The Unsolved Mystery of Saturn's Hexagon -4 Times the Size of Earth "Cassini is indebted to Voyager for its many fascinating discoveries and for pavingthe way for Cassini," says Linda Spilker, Cassini project scientist at JPL, who started her career working on Voyager from 1977 to 1989. "On Cassini, we still compare our data to Voyager's and proudly build on Voyager's heritage." But the Voyager Mission left a few mysteries that Cassini has not yet solved. 'Now that we can see undulations and circular features instead of blobs in the hexagon, we can start trying to solve some of the unanswered questions about one of the most bizarre things we've ever seen in the solar system, said Kevin Baines, Atmospheric scientist at NASA's Jet Propulsion Laboratory after viewing Cassini images in 2009. After waiting years for the sun to illuminate Saturn's north pole again, cameras aboard NASA's Cassini spacecraft captured detailed images yet of the intriguing hexagon four times the size of Earth crowning the planet. Casey Kazan from materials provided by JPL/NASA

3 manières de fabriquer un modèle réduit du système solaire Étapes Méthode 1 sur 3: Modèle réduit en polystyrène (Styrofoam®)[1] <img alt="Model the Solar System Step 1.jpg" src=" width="670" height="503">1Coupez les goujons à la bonne taille. Utilisez une petite scie ou des cisailles d'artisanat affûtées pour découper les goujons en bois de 91 cm x 0,3 cm en 9 morceaux. Chaque morceau devrait correspondre à la distance relative de chaque planète par rapport au Soleil. <img alt="Model the Solar System Step 9.jpg" src=" width="670" height="503">9Enlevez l'élastique. Méthode 2 sur 3: Mobile en carton et papier kraft[2] Méthode 3 sur 3: Modèle utilisant des boutons.[3] Conseils Des modèles plus anciens du système solaire incluent la planète Pluton. Éléments nécessaires Modèle réduit en Styrofoam® (polystyrène expansé)

Mars 3D Images - NASA Jet Propulsion Laboratory Panorama from Curiosity's Sol 1000 Location Rock Spire in 'Spirit of St. Experience Just How Big the Universe is, in One Mind-Blowing Interactive You need a more recent version of Adobe Flash Player. Recently, NASA scientists combined data from the Spitzer and Hubble Space Telescopes to discover the most distant galaxy known to date. The galaxy, named Abell2744 Y1, was formed around 13.2 billion years ago when the universe was extremely young. As the universe is expanding, Abell2744 Y1 is currently closer to 40 billion light years away from us, an astounding distance. Image: Galaxy cluster Abell2744 obtained by the Hubble Space Telescope (Credit: NASA) But what does that really mean? Most of us have trouble visualizing the height of buildings, or the distance it takes to get home from work, let alone things on an intergalactic scale. Even cooler are the tidbits of information that are provided when you click on an object. 1. This is the smallest unit of scale in the universe. As you can see from the animation it takes a bit of zooming to reach this scale. 2. 3. 4. Tres-4 is the second largest planet discovered so far. 5. 6. 7.

Comment Mars va perdre sa lune Phobos... mais gagner un anneau Phobos va mourir, tuée à petit feu. Ce n'est pas pour demain, mais l'une des deux lunes de Mars ne sera plus, d'ici 20 à 40 millions d'années. Une étude publiée lundi dans la revue britannique Nature Geoscience suggère que le petit satellite pourrait se désintégrer et ses débris former un anneau autour de la planète rouge. "Les scientifiques savent depuis plusieurs décennies que Phobos se rapproche lentement de Mars, à une vitesse de quelques centimètres par an", explique Benjamin Black, de l'université américaine Berkeley, coauteur de cette étude. Cette proximité deviendra un jour fatale pour Phobos qui, sous l'effet de la force gravitationnelle de Mars, se disloquera. Ses composants les plus résistants percuteront la planète en formant un cratère. Et le processus a déjà commencé. Des "vergetures" comme signe avant-coureur Les scientifiques envisagent donc une autre cause. Or la lune martienne est fragile. Mais pourrait-il arriver la même chose à notre Lune?

Strongest evidence yet indicates Enceladus hiding saltwater ocean This image shows icy spray spewing from Saturn's moon, Enceladus. Credit: NASA/JPL/Space Science Institute The new discovery was made during the Cassini-Huygens mission to Saturn , a collaboration of NASA, the European Space Agency and the Italian Space Agency. The plumes shooting water vapor and tiny grains of ice into space were originally discovered emanating from Enceladus -- one of 19 known moons of Saturn -- by the Cassini spacecraft in 2005. During three of Cassini's passes through the plume in 2008 and 2009, the Cosmic Dust Analyser, or CDA, on board measured the composition of freshly ejected plume grains. The study shows the ice grains found further out from Enceladus are relatively small and mostly ice-poor, closely matching the composition of the E Ring. Enlarge Dramatic plumes, both large and small, spray water ice out from many locations along the famed "tiger stripes" near the south pole of Saturn's moon Enceladus. University of Colorado at Boulder

5 outils en ligne pour explorer le système solaire – Les Outils Tice Article mis à jour le 5 août 2015 par Fidel Navamuel Et si nous prenions un peu de hauteur ? Le net regorge de sites web, de blogs, d’articles et d’applications de toute sorte qui permettent de mieux comprendre ou de mieux faire comprendre notre système solaire. JoshWorth Ce joli blog scientifique propose une representation graphique en ligne de notre système solaire qui permet de bien dimensionner les distances. SolarSystem Scope Beaucoup plus classique, ce site offre une navigation en 3 D de notre système solaire avec toute une série de panneaux d’information et différentes vues sur les planètes ou les étoiles. WorldWide Telescope Les géants du Web ne pouvaient pas passer à côté d’un terrain d’exploration comme celui-ci. Google Mars Beaucoup plus grand public, ce site propose par le géant Google permet de découvrir la surface de la planète rouge. Google Moon Le pendant du précédent mais pour notre muse la lune. Une petite liste de cinq ressources que j’ai trouvé intéressantes.

Space facts for kids at Super Brainy Beans The Sun The Sun comes out in the day and sits high in the sky. It gives us light and heat. The moon The moon comes out in at night. The Stars The stars come out at night and twinkle in the night sky. The Sun, the earth and the moon The Earth travels around the Sun. Earth, Sun & Moon Learn about the Earth, Sun & Moon's orbits as you experiment with different dates and times in this fun activity. The moon travels around the earth in the same way. Planets There are 8 planets in our solar system. Explore the Planets Learn about the planets in our solar system and an easy way to remember them! Day and night Day and Night Learn how the movement of the Earth makes day and night-time. Night and Day What can you remember about night and day? The phases of the Moon Phases of the moon Learn about how the positions of the Earth and Sun affect our view of the Moon. Earth & Beyond Learn facts of our solar system if you pass the test you earn credits to play a game. Our solar system Space travel Our Solar System

Radar evidence of subglacial liquid water on Mars Abstract The presence of liquid water at the base of the martian polar caps has long been suspected but not observed. We surveyed the Planum Australe region using the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument, a low-frequency radar on the Mars Express spacecraft. The presence of liquid water at the base of the martian polar caps was first hypothesized more than 30 years ago (1) and has been inconclusively debated ever since. On Earth, the interpretation of radar data collected above the polar ice sheets is usually based on the combination of qualitative (the morphology of the bedrock) and quantitative (the reflected radar peak power) analyses (3, 9). Between 29 May 2012 and 27 December 2015, MARSIS surveyed a 200-km-wide area of Planum Australe, centered at 193°E, 81°S (Fig. 1), which roughly corresponds to a previous study area (8). We examined other possible explanations for the bright area below the SPLD (supplementary text).

Saturn Moon Has Oxygen Atmosphere An oxygen atmosphere has been found on Saturn's second largest moon, Rhea, astronomers announced Thursday—but don't hold your breath for colonization opportunities. For one thing, the 932-mile-wide (1,500-kilometer-wide), ice-covered moon is more than 932 million miles (1.5 billion kilometers) from Earth. For another, the average surface temperature is -292 degrees Fahrenheit (-180 degrees Celsius). And at less than 62 miles (100 kilometers) thick, the newfound oxygen layer is so thin that, at Earthlike temperatures and pressure, Rhea's entire atmosphere would fit in a single midsize building. Still, the discovery implies that worlds with oxygen-filled air may not be so unusual in the cosmos. At about 327,000 miles (527,000 kilometers) from Saturn, Rhea orbits inside the planet's magnetic field. The Hubble Space Telescope and NASA's Galileo probe found in 1995 that a similar process creates tenuous oxygen atmospheres on Jupiter's ice moons Europa and Ganymede.

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