Meteorites, Comets and Asteroids

All about Meteorites Comets Asteroids: Meteorite: Stony, iron, stony-iron metal meteoroid or asteroid metal, Cryovolcanism Shape Dwarf Planet Ceres, Asteroid’s Characteristics, planetary shake-up, asteroid Itokawa, NASA’s OSIRIS-REx, Meteorite bombardment. Asteroid asteroids facts size belt types, answers to questions like: How are asteroids formed? Where are asteroids found? What are asteroids made of? Comets Interesting facts, famous names of comets, halley’s comet, the Kuiper Belt and the Oort Cloud frozen ammonia, methane or water, dirty snowballs and questions like: What are comets made of? Where do comets come from? How big are comets?

  • Scientists have found what they believe to be evidence of a powerful, ancient impact event in Canada’s Alberta province.
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  • The target of ESA’s Rosetta mission has started to reveal its true personality as a comet, its dusty veil clearly developing over the past six weeks.
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  • ISON Comet Photography Contest winners provide images from around the world
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  • Between 2000 and 2013, a network of sensors detected 26 explosions on Earth ranging in energy from 1-600 kilotons – all caused not by nuclear explosions, but rather by asteroid impacts.
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  • Researchers have spotted the first signs of a potential 'exomoon.' It's presence cannot be confirmed because it was observed during a chance encounter of objects that will not occur again - but it is a step toward locating other moons around distant stars.
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  • Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting a star in the "habitable zone" -- the range of distance from a star where liquid water might pool on the surface of an orbiting planet.
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  • Scientists have identified a 3.26 billion-year-old impact crater that has a diameter up to two and a half times larger than the Chicxulub crater.
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  • In its first months of operation, the Automated Planet Finder has found two new planetary systems, giving astronomers a taste of planetary riches to come.
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  • Scientists have discovered that the remote asteroid Chariklo is surrounded by two dense and narrow rings. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.
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  • In another step forward in the search for habitable planets, a team of researchers announced that they have located a large swarm of comets and gas moving in a cloud around a nearby star.
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