For long, meteors that crashed on earth were considered to be remnants of the early solar system. The meteors are usually found studded with chondrules, tiny, glass, spherical grains.
It was considered that chondrules were early kernels of terrestrial planets. But researchers at MIT and Purdue University have a new revelation to make. They have found that chondrules might not have played a fundamental role in the formation of planets.
The researchers based their findings on computer simulations and concluded that chondrules are by-products of planetary process and not the building blocks. The team found that planetary bodies as big as moon already existed before chondrules came on the scene.
The researchers think that chondrules were most probably formed by the collision of moon-sized planter embryos. Brandon Johnson from MIT’s Department of Earth, Atmospheric and Planetary Sciences said, “This tells us that meteorites aren’t actually representative of the material that formed planets — they’re these smaller fractions of material that are the byproduct of planet formation”.
Johnson affirmed that the study findings have also unveiled that the early solar system was more violent than they have expected. The research team said that they have also modeled all the different types of impact that might have taken place in the early solar system.
- See more at: http://perfscience.com/content/2141073-chondrules-were-byproducts-violent-planetary-process#sthash.4XzOzvJT.dpuf
For long, meteors that crashed on earth were considered to be remnants of the early solar system. The meteors are usually found studded with chondrules, tiny, glass, spherical grains.
It was considered that chondrules were early kernels of terrestrial planets. But researchers at MIT and Purdue University have a new revelation to make. They have found that chondrules might not have played a fundamental role in the formation of planets.
The researchers based their findings on computer simulations and concluded that chondrules are by-products of planetary process and not the building blocks. The team found that planetary bodies as big as moon already existed before chondrules came on the scene.
The researchers think that chondrules were most probably formed by the collision of moon-sized planter embryos. Brandon Johnson from MIT’s Department of Earth, Atmospheric and Planetary Sciences said, “This tells us that meteorites aren’t actually representative of the material that formed planets — they’re these smaller fractions of material that are the byproduct of planet formation”.
Johnson affirmed that the study findings have also unveiled that the early solar system was more violent than they have expected. The research team said that they have also modeled all the different types of impact that might have taken place in the early solar system.
- See more at: http://perfscience.com/content/2141073-chondrules-were-byproducts-violent-planetary-process#sthash.4XzOzvJT.dpuf
The Unnecessary Cost of Cancer
Dr. Eldon Dahl, Prevent DiseaseRecently, a 60 Minutes special about the cost of cancer drugs was rebroadcast. In the broadcast, cancer specialists from the Memorial Sloan Kettering Cancer Center were profiled for their stance against the exorbitant cost of cancer drugs. Dr. Leonard Saltz, one of the chief specialists at the hospital and a leading authority on colon cancer, stated, “We’re in a situation where a cancer diagnosis is one of the leadin [...]
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