A team of researchers from Japan and the United States has found particles of comet dust on the surface of the Earth. This finding, which had not occurred ever, was conducted in Antarctica, where ice extracted from the area to be studied.
In the article published in ‘ Earth and Planetary Science Letters’ , the study’s authors stressed that” has not been easy to find samples of a comet “.
In particular have had to drill the ice about 17 meters in the place known as Tottuki Point , and samples of the area were taken after the lab. They have collected particles floating around in the atmosphere, for which a sticky sheet is used. This method traps dust in the air, but leaves oils ‘dirty’ samples.
The ice obtained, after melt it in the lab and analyze it, has allowed scientists to find dust particles that initially thought they belonged to a meteorite and, finally determined to be chondritic interplanetario– –partículas of dust. That is, it was possible that its origin was a comet.
This is the first discovery of remains of a kite on the surface of the Earth . In fact, before the discovery, scientists believed that tiny dust particles never survive a trip through the atmosphere , much less to the harsh conditions that were presented once on Earth .
No comments:
Post a Comment