Sunday 18 January 2015

Space disasters, Solar Flare


SPACE DISASTERS

Fallen trees caused by the Tunguska meteoroid of the Tunguska event in June 1908.
Impact events
Asteroids that impact the Earth have led to several major extinction events, including one that created the Chicxulub crater 64.9 million years ago and associated with the demise of the dinosaurs. Scientists estimate that the likelihood of death for a living human from a global impact event is comparable to death from airliner crash. One of the notable impact events in modern times was the Tunguska event in June 1908.

SOLAR FLARE


A solar flare is a phenomenon where the sun suddenly releases a great amount of solar radiation, much more than normal. Some known solar flares include:

An X20 event on August 16, 1989
A similar flare on April 2, 2001
The most powerful flare ever recorded, on November 4, 2003, estimated at between X40 and X45
The most powerful flare in the past 500 years is believed to have occurred in September 1859



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