V RaptureChrist Newsletter |
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Most meteors are streaks of light that appears in the sky for a fraction of a second. They are caused when a meteoroid -- a particle that usually ranges in size from a grain of sand to a pebble-- enters the atmosphere of the earth from outer space. The largest known meteoroid was the Chicxulub meteor in Mexico. It is believed to have killed all the dinosaurs. In the picture we show a drawing of what it looked like. The basin it formed in Mexico's Yucatan peninsula has a diameter of 190 miles (300 kilometers). Rock samples obtained by drilling into the basin show increased amounts of iridium, which indicates that an asteroid struck the earth there. The impact hurled much debris into the sky. Many scientists believe these particles were carried high into the ionosphere, blanketing the earth for years, causing something similar to a nuclear winter blocking out the sun and causing climate changes that the dinosaurs could not survive. Most meteors vaporize when they enter the earth's atmosphere. The combined speed from the meteoroid plus the earth speed may reach about 45 miles per second -- this is what causes the friction that melts the meteorite. Friction heats up the meteoroid which gives off a trail of inflamed gases, and this is what is seen by the naked eye as a bright path that some people call a shooting star. In some meteors, the trail of gases lasts for a minute or more. In the last century a meteor vaporized before hitting the earth in Tunguska, Russia. The area of devastation is still seen today, almost a century after the episode occurred. If the mass of the meteoroid is large enough, and it enters at the correct angle, it could reach the surface of the earth; these are called meteorites. The size of meteorites varies. Most are relatively small, but a few have left a crater when they hit the earth. Thousands of
small meteorites have been found in Antarctica, because in Antarctica
there is no vegetation that would hide the remains of the meteorite and of
the impact it made on the earth surface. These meteorites have
provided a rich supply of specimens for scientists to study.
When Europeans first encountered Meteor Crater, the arid sandstone plain around it was littered with big boulders of meteoritic iron - over 30 tons of it, scattered over an area 8 to 10 miles in diameter. Most basins and impact craters bigger than the Meteor Crater are largely eroded or have been buried by rocks, dirt and vegetation due to the fact that they are located in areas of heavy rainfall. Meteoroids travel
around the sun in a variety of orbits and at different velocities. |
One of the most brilliant meteor shower is the Leonid shower, given this name because it seems to come from the direction of the constellation Leo. It occurs every November. One of the most brilliant Leonid showers was seen in 1833. The last Leonid shower was this year on November 17-19. It was visible from several continents as the Earth went through the path of several streams of the remains of comet Tempel-Tuttle . Observers
counted about 4000 meteors per hour over the Americas, Asia and Australia. They
also saw meteors strike the surface of the Moon. Brian Cudnik from
Houston, Texas, observing through a telescope, saw a brief flash, about a
fraction of a second, near the center of the Moon's dark side. The
event was also seen by astronomer David Dunham, who made a video recording
of the meteor striking the lunar surface. Revelation
6:12 The Book of Revelation continues with the next event: Revelation
6:14 According to an eyewitness in Vanavara, "The sky split apart and a great fire appeared. It became so hot that one couldn't stand it. There was a deafening explosion [and my friend] S. Semenov was blown over the ground across a distance of three sazhens [six meters]. As the hot wind passed by, the ground and the huts trembled. Sod was shaken loose from our ceilings and glass was splintered out of the window frames." The reason that
the sky split apart in Tunguska was that the heat of the meteor
caused the hot air to rise pushing away the clouds like a knife cutting
the sky. A similar event, but of a much larger magnitude will happen
in the near future, as predicted in the Book of Revelation. Luke 21:28 |