Sentences with phrase «large airbursts»

Rather than random occurrences, many large airbursts might result from collisions between Earth and streams of debris associated with small asteroids or comets.

which provided inspiration for the unorthodox and controversial notion that a large airburst over North America caused an abrupt climate change mass extinction.

Not exact matches

The glass itself, one large polished piece of which has a prominent place in a necklace that belonged to Egyptian pharaoh Tutankhamen, has been dated to 28.5 million years and has long been thought to be the result of a meteorite impact or an airburst caused by a comet breaking up in Earth's atmosphere.

Between 2000 and 2013, they identified 33 such events (including the meteoroid that blazed into the atmosphere and detonated over Chelyabinsk, Russia, in February 2013, see image; the large blip in the meteor trail at right denotes where the 500 - kiloton airburst occurred).

Researchers used data from sensors designed to detect clandestine nuclear tests, among other sources, to identify airbursts with an energy equivalent to or larger than that released by 1 kiloton of exploding TNT.