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Universe PicturesUniverse Pictures Pictures of the Universe: Views of the most interesting objects in our universe by NASA. Diamonds In SpaceDiamonds In Space Diamonds In Space: Diamonds with Spitzer Space Telescope. Planets CollidePlanet Collision Planet Collision: Spitzer detects an ancient impact . Dinosaur KillerDinosaur Killer Where Did the Dinosaur-Killing Asteroid Come From? WISE telescope investigates.
Life on Europa?Life on Europa Life on Europa could exist in a salty ocean deep below its frozen surface. Moon StructureMoon Structure Moon\'s Internal Structure: The Moon has a structure similar to earth and an iron-rich core. Rocks on MarsRocks on Mars Rocks on Mars: Many of the rocks found on Mars are not very different from Earth rocks. Rocks Made of IceRocks Made of Ice Where Rocks are Made of Ice: Rocks on Saturn\'s moon Titan are likely made of water ice.
Volcanoes on MarsMars Volcanoes Olympus Mons: Highest point on Mars, and largest volcano. Olivine RainOlivine Rain Olivine Rain: Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68. Titan\'s Sand DunesSand Dunes on Titan Sand Dunes on Titan: Saturn\'s moon has sand dunes composed of solid hydrocarbon.  

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