A new kind of meteorite different from meteorites found so far is found in Sweden

ByNASA's Marshall Space Flight Center

The phenomenon that the asteroid burns brightly as it enters the Earth's atmosphere is called "meteor (meteor)", and what arrives on the ground without burning out is "meteorite"It is useful as a perfect resource for studying the universe. It is drawing attention as a new kind of thing that has never been observed in Sweden as to the meteorite to say as a present from such space.

A fossil winonaite-like meteorite in Ordovician limestone: A piece of the impactor that broke up the L-chondrite parent body?

Ancient Asteroid Destroyer Finally Found, And It's a New Kind of Meteorite

Since asteroids are much smaller than planets and are not bound by their own gravity, some have nonspherical irregular shapes and are not altered by internal heat, so they are almost the same as when the solar system was born It is thought that it is maintaining the state, and analyzing asteroids is thought to lead to the discovery of the solar system and the origin of the earth. A sample of asteroids indispensable for such space research, the first in the world in 2010 the Japanese asteroid explorer "HayabusaAlthough the historical achievements brought back by is remembered newly, prey prey for studying asteroids is generally "meteorite" which is the remains of asteroids falling to the earth.

The meteoriteChondruleIncluding spherical particles calledChondriteAnd chondrule not includedEcondriteIt is classified into. Most of the meteorites that have been discovered so far are chondrites, and the contained chondrules are formed by cooling the gas components at the very moment when the solar system is born, so chondrites are formed in the early solar system It is thought to have information of.

It is 4.7 million years ago at the Solberg quarry in Sweden in 2011OrdovicianA meteorite in the fossil state, which is thought to have been caused by the large variation of the universe that occurred in the earth, was discovered from the ground. This meteorite is very rare among ekundolitesWinonaiteAlthough it is very similar to a meteorite called "Winonite", an opaqueSpinelThe content of the spinel was found to be extremely small, and the size of the spinel particle was also small, and it was found that it has distinctly different characteristics from Winonite.

Dr. Biel Schmidt, a geologist at the Lund University in Sweden who analyzed the meteor, said, "The meteorites discovered this time can be considered to be of a different kind from the meteorites found so far." In addition, this meteorite is said to call it "mysterious object" until the official name is decided.

Dr. Schmidt commented, "The discovery of mysterious objects has given rise to the possibility that the meteorites that have so far fallen on the earth do not fully represent asteroids. That means that we may not know about the solar system as much as we think. "

in Science, Posted by darkhorse_log