Identification of molecular-cloud material in interplanetary dust particles

Article Abstract:

A new study shows that H and N isotopic abnormalities among fragile cluster interplanetary dust particles (IDPs) are more common and larger than those observed in previous research, suggesting that cluster IDPs are the most primitive class of solar system materials available for study in the laboratory.

Astrophysics

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The extraterrestrial wedding ring

Article Abstract:

Studies of the origins of the siderophile elements which include gold and platinum are discussed. It has been suggested that these these elements identified by their preference for metal magmas may have been added to the earth by meteorites.

Magma, Platinum group, Platinum group metals

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Interplanetary dust from the explosive dispersal of hydrated asteroids by impacts

Article Abstract:

The shockrecovery experiments on two porous meteorites hydrated and anhydrous, is reported. The results explain the different relative abundances of the hydrated material in micrometeorites and meteorites.

Science & research, Hydrates, Cosmic dust

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