Questions tagged [meteoroid]

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Have any meteoroids been detected before they reached the Earth's atmosphere?

Once a meteoroid starts burning up in the atmosphere, it becomes a visible meteor. Have any meteoroids been detected before they started to burn in the atmosphere? If yes, what is the ballpark ...
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Could life forms have travelled between the Earth and Mars on meteoroids?

Mars meteorites have been found on Earth, and there likely are Earth meteorites that have crashed on Mars. If you take any random piece of rock from the surface of Earth, the odds are there will be ...
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Was NASA's 2007 attempt to see helions during a solar eclipse successful? What instruments were used?

This answer about Sun-grazing comets led me eventually to Wikipedia's Helion (meteoroid), which has a one-sentence long article: A Helion meteoroid is a meteoroid that arrives from the approximate ...
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What is the average Ni-Fe crystal length in iron meteorites?

Iron-core meteorites display an awesome criss-cross pattern known as the Widmanstätten pattern, shown below: (photo by Dr. Patrick M. Len, taken from Wikipedia) I TA for an intro-level astronomy/...
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