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meteorite    音标拼音: [m'itiɔr,ɑɪt]
n. 陨星

陨星

meteorite
n 1: stony or metallic object that is the remains of a meteoroid
that has reached the earth's surface


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  • Meteorite - Wikipedia
    [1] A meteorite is a rock that originated in outer space and has fallen to the surface of a planet or moon [2] When the original object enters the atmosphere, various factors such as friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate energy
  • How to Identify Meteorites With Pictures – Geology In
    To tell if a rock is a meteorite, start by examining its physical features and characteristics Many meteorites are magnetic due to their iron-nickel content, but there are non-magnetic meteorites as well, making pictures of these invaluable for identification
  • Meteors and Meteorites - NASA Science
    Scientists estimate that about 48 5 tons (44 tonnes or 44,000 kilograms) of meteoritic material falls on Earth each day Almost all the material is vaporized in Earth's atmosphere, leaving a bright trail fondly called "shooting stars " Several meteors per hour can usually be seen on any given night
  • Meteorite | Definition, Types, Identification, Facts | Britannica
    Meteorite, any fairly small natural object from interplanetary space—i e , a meteoroid—that survives its passage through Earth’s atmosphere and lands on the surface
  • Meteors and Meteorites: Facts - NASA Science
    When a meteoroid survives its trip through the atmosphere and hits the ground, it’s called a meteorite Meteorites typically range between the size of a pebble and a fist
  • Meteorite found in Sahara desert may be 1st evidence of lost solar . . .
    A rare meteorite recovered from the Sahara Desert contains the first definitive evidence of a long-lost world that may have rivaled the moon in size and existed just a few million years after the
  • I think I found a meteorite. How can I tell for sure?
    Meteorites are fragments of rock or metal that fall to Earth from space They are very rare, but many people find unusual rocks or pieces of metal and wonder if they might have found a meteorite
  • Hoba meteorite - Wikipedia
    The meteorite is composed of about 84% iron and 16% nickel, with traces of cobalt It is classified as an ataxite iron meteorite belonging to the nickel-rich chemical class IVB
  • Think youve found a meteorite? This is what you need to do next
    What to do if you've found a meteorite, including what to look for, how to handle it and where to send it for expert analysis
  • Meteor explodes off coast of Massachusetts, causing loud boom
    NASA said the energy released when the meteor broke up was equivalent to about 230 tons of TNT It was heard around 2:11 p m Eastern Time, with people describing a sudden bang that rattled





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