Images Of Saturn, Tethys, And Mimas Taken By Cassini On July 16 2005.

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If you’ve visited the Museum, you’re certainly familiar with today’s Fossil Friday feature: the Barosaurus and Allosaurus in the Rotunda! Rising 50 ft (15 m) above the ground, it’s the world’s tallest freestanding dinosaur mount. In this scene, a Barosaurus rears up to defend her young from an Allosaurus. How does the huge skeleton of Barosaurus—whose name means “heavy reptile”—stay up? The Barosaurus is built from casts of real fossil bones, while the originals are housed in the Museum’s collections. Real fossil bones would be too heavy to support this way.

Photo: D. Finnin / © AMNH

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(via 500px / …… by Fabrizio Riccardo Castorina)

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First Ever Image of a Multi-Planet System around a Sun-like Star Captured by ESO Telescope

The European Southern Observatory’s Very Large Telescope (ESO’s VLT) has taken the first ever image of a young, Sun-like star accompanied by two giant exoplanets. Images of systems with multiple exoplanets are extremely rare, and — until now — astronomers had never directly observed more than one planet orbiting a star similar to the Sun. The observations can help astronomers understand how planets formed and evolved around our own Sun.

The two gas giants orbit their host star at distances of 160 and about 320 times the Earth-Sun distance. This places these planets much further away from their star than Jupiter or Saturn, also two gas giants, are from the Sun; they lie at only 5 and 10 times the Earth-Sun distance, respectively. The team also found the two exoplanets are much heavier than the ones in our Solar System, the inner planet having 14 times Jupiter’s mass and the outer one six times.

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