安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- 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
- 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
- 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
- What should you do if you find a meteorite? Space rock experts explain
What should you do if you find a meteorite? Space rock experts explain by Heather Handley, Dermot Henry, Oskar Lindenmayer, The Conversation
- 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
- 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
- 3. 1 Meteorites: Fossils from the Sky
3 1 Meteorites: Fossils from the Sky Any fragment of interplanetary debris that survives its fiery plunge through Earth’s atmosphere is called a meteorite Unlike rocks collected by astronauts or robotic spacecrafts, such as the Apollo Moon rocks or rocks and regolith from asteroid Bennu, meteorites come to us free of charge—they literally fall from the sky Meteorites fall only very
- Meteorite - Education
The best-preserved impact crater in the world is the Barringer Meteorite Crater, near the U S town of Winslow, Arizona There, more than 50,000 years ago, a meteorite weighing about 270,000 metric tons (300,000 tons) slammed into Earth with the force of 2 5 million tons of TNT
|
|
|