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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
    Meteorites have traditionally been divided into three broad categories: stony meteorites that are rocks, mainly composed of silicate minerals; iron meteorites that are largely composed of ferronickel; and stony-iron meteorites that contain large amounts of both metallic and rocky material
  • 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 In modern usage the term is broadly applied to similar objects that land on the surface of other comparatively large bodies
  • Fireball sightings are surging across the US — heres whats really . . .
    With bright meteors sighted over Ohio, Texas, and Europe, you might wonder what's going on Is meteor activity really increasing, or is there just a surge in reporting? (Image credit: Left to
  • Meteorite that caused Cape Cod boom may have landed in bay: NASA - MSN
    Meteorite that caused a boom over Cape Cod may have landed in the bay, NASA says - With the meteorite falling into 100 feet of water and likely having magnetic properties, a space rock hunter can
  • 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
  • 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
  • That loud boom heard across Eastern Mass. ? NASA says it was a fireball.
    Just after 6 p m Saturday, a NASA spokesperson said the cause was a fireball traveling at 75,000 miles per hour which, at 2:06 p m , “appears to have fragmented at an altitude of 40 miles above extreme northeast Massachusetts southeast New Hampshire ”
  • 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





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