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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 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
  • 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
  • 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
  • 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 In modern usage the term is broadly applied to similar objects that land on the surface of other comparatively large bodies
  • Why largest meteorite found on Earth has no crater around it
    The Hoba meteorite in Namibia is the largest known natural piece of iron on Earth, weighing about 60 metric tons today By simple logic and physics, a metal object that massive should have smashed
  • Meteorite Identification: Have you found a space rock?
    If you would like to learn more about meteorite identification, and discover how to perform some other simple tests at home, please visit The Aerolite Guide to Meteorite Identification Meteorites are very valuable both to the scientific community and to enthusiastic collectors
  • 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
  • Meteorites are hitting houses, landing in fields and leading to hunters . . .
    The meteorite that landed in James’ 30-year-old daughter’s room was composed mostly of silicate minerals, but likely contains metallic iron in small-scattered grains
  • Heres our how-to guide for observing a meteorite with a microscope | Space
    I'll take you through the process of identifying and studying a genuine meteorite sample from the comfort of your own home and make personal recommendations for gear that I've found useful for
  • Cannonball-size meteorite crashes through roof of Texas home as . . .
    It is likely a fragment of one of several "fireball" meteors that exploded over the U S in the past week A fireball meteor that recently streaked across the daytime Texas sky sent fragments





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