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Topics related to "Scorched earth mystery Tunguska Meteor"

fall of meteors fall of meteors
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meteor shower meteor shower
meteor shower increase in the number of meteors observed in a particular part of the sky. The trails of the meteors of a meteor shower all appear to be traceable back to a single point in the sky, known as the radiant point, or radiant. A shower is named for the constellation in which its radiant... Read more
meteor meteor
meteor appearance of a small particle flying through space that interacts with the earth's upper atmosphere. While still outside the atmosphere, the particle is known as a meteoroid. Countless meteoroids of varying sizes are moving about the solar system at any time. Perhaps a billion meteoroids a... Read more
Meteorites Meteorites
Meteorites Most people have looked up into the night sky and seen the fleeting flashes of light that are known as meteors. These flashes are caused by small sand-sized particles that are debris from comets, which melt in the atmosphere and never reach the surface of Earth.... Read more
fireball fireball
fireball very bright meteor leaving a trail in the sky that can remain visible for several minutes; often a distinct sound, perhaps caused by very low frequency radio waves, is associated with it. A bolide is a fireball that explodes in the air because of thermal stresses created when it passes... Read more
crater crater
crater circular, bowl-shaped depression on the earth's surface. (For a discussion of lunar craters, see moon .) Simple craters are bowl-shaped with a raised outer rim. Complex craters have a raised central peak surrounded by a trough and a fractured rim. Many of the largest craters are formed by... Read more
event stratigraphy event stratigraphy
event stratigraphy Event stratigraphy is a comparative latecomer to the Earth sciences, but is proving to be a useful and interesting concept. Extraordinary or singular widespread geological events of very short duration may leave an impression in the stratigraphical record. Fixing the order and... Read more
meteorite meteorite
meteorite meteor that survives the intense heat of atmospheric friction and reaches the earth's surface. Because of the destructive effects of this friction, only the very largest meteors become meteorites. Classification of Meteorites Not until the early 19th cent. did scientists fully accept... Read more
Luis Walter Alvarez Luis Walter Alvarez
Luis Walter Alvarez 1911-88, American physicist, b. San Francisco, grad. Univ. of Chicago, 1932, Ph.D. 1936. He was awarded the 1968 Nobel Prize in Physics for his discovery of a large number of residence states (subatomic particles that have very short lifetimes and that occur only in high-energy... Read more
planet planet
planet [Gr.,=wanderer], a large nonluminous ball of rock or gas that orbits a star. The term, once limited to any of the eight solid, nonluminous bodies (major planets) that revolve around the sun, has been extended to include similar bodies discovered revolving around other stars. The term is... Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

The tale of the Pharaoh and the green glass scarab: cutting-edge science...
Magazine article from: The Evening Standard (London, England) ...chasing ancient mysteries, this physicist...long proved a mystery. It was once...the effects of meteors and other space...that slam into Earth. Perhaps this...of an incoming meteor or asteroid that had scorched the desert ...

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