meteorites tagged posts

Researchers use unusual meteorite to gain insight into our solar system’s past, present. Scientists knew a burst of UV light left its mark on our solar system. Now they know the source of that light.

In 2011, scientists confirmed a suspicion: There was a split in the local cosmos. Samples of the solar wind brought back to Earth by the Genesis mission definitively determined oxygen isotopes in the sun differ from those found on Earth, the moon and the other planets and satellites in the solar system.

Early in the solar system’s history, material that would later coalesce into planets had been hit with a hefty dose of ultraviolet light, which can explain this difference...

Scientists from Japan and the USA have confirmed the presence in meteorites of a key organic molecule which may have been used to build other organic molecules, including some used by life. The discovery validates theories of the formation of organic compounds in extraterrestrial environments.

The chemistry of life runs on organic compounds, molecules containing carbon and hydrogen, which also may include oxygen, nitrogen and other elements. While commonly associated with life, organic molecules also can be created by non-biological processes and are not necessarily indicators of life...

SAPHiR multi-anvil press solves mystery of the solar system. Meteorites give us insight into the early development of the solar system. Using the SAPHiR instrument at the Research Neutron Source Heinz Maier-Leibnitz (FRM II) at the Technical University of Munich (TUM), a scientific team has for the first time simulated the formation of a class of stony-iron meteorites, so-called pallasites, on a purely experimental basis.

“Pallasites are the optically most beautiful and unusual meteorites,” says Dr. Nicolas Walte, the first author of the study, in an enthusiastic voice. They belong to the group of stony-iron meteorites and comprise green olivine crystals embedded in nickel and iron...

Research team re-calculates distribution of volatile elements. Geologists gain new insights regarding the Earth’s composition by analyzing meteorites. They conclude that the building blocks that brought volatile elements to Earth have a chemical composition similar to that of primitive carbonaceous chondrites.

The study focuses on the distribution and origin of so-called volatile elements such as zinc, lead and sulphur, which have low boiling temperatures in space...