On March 17, 2013, an object about the size of a small boulder hit the lunar surface," said Bill Cooke of NASA's Meteoroid
Environment Office, in a statement.
Like 1P/Halley, stream meteoroids
have a retrograde orbit around the Sun, meaning that they enter the upper atmosphere at a high velocity of around 66 km/sec.
that reach the earth are called meteorites.
Over long periods of time, the constant bombardment by meteoroids
darkens the rays and mixes them with the surface dust.
For example, a subtle but extensive corrugation that ripples 12,000 miles (19,000 kilometers) across the innermost rings tells of a very large meteoroid
impact in 1983.
Quiz of the Day ANSWERS: 1 John Humphrys; 2 Twelve; 3 Scud; 4 A replacement prosthetic leg for Douglas Bader; 5 A meteoroid
flies; a meteorite has already impacted; 6 Two girls and two boys - the fifth was a dog; 7 I Dreamed A Dream; 8 Picasso; 9 According to royal custom, his brothers acted as his supporters; 10 To remove sediment.
Asteroids SIZE From grains of sand to 50 meters (164 ft) across about 50 meters (164 ft) or bigger; Ceres, the across largest, is about 940 km (584 mi) in diameter COMPOSITION Rocky or metallic Rocky or metallic (iron and nickel) ORIGIN All over the solar system Asteroid belt, between Mars and Jupiter POPULATION Zillions (unknown) Estimated at several million COMMENTS Friction from Earth's Asteroids are materials atmosphere makes a left over from the meteoroid
glow and form a formation of the solar streak of light called a system and never meteor.
Save humanity from a meteoroid
called Impending Dume.
Events that long ago affected how the Chelyabinsk meteoroid
broke up in the atmosphere, influencing the damaging shockwave," said Jenniskens.
It's the Perseid meteor shower, which peaks on August 12th and 13th," Bill Cooke of NASA's Meteoroid
Environment Office declared in a statement.
But the sensation it created on Twitter and other social media outlets is understandable nonetheless, said Bill Cooke, head of the Meteoroid
Environment Office at NASA's Marshall Space Flight Center in Huntsville, Ala.
Astronomers have proposed that the rings formed when an icy Saturnian moon got smashed to bits by a meteoroid
or when a comet or moon that came too close to its parent planet was torn apart by gravitational stresses.
In this Letter, we assume that the meteoroid
responsible for the Chelyabinsk event was the result of a relatively recent asteroid break-up event and use numerical analysis to single out candidates to be the parent body or bodies," they wrote.
Bill Cooke, head of NASA's Meteoroid
Environment Office, said scientists believe the object originated in the asteroid belt between Mars and Jupiter.
Caltech officials explained that meteor is the term for the light show produced when a meteoroid
, or rock from outer space, is heated by its entry into the Earth's atmosphere.