Tag Archive for 'Alpha-aminoisobutyric acid'

This SEM image shows a polished thin section of Asuka 12236. The section is about 1 cm (a third of an inch) across. Most of the bright grains in the image are iron-nickel-metal and/or iron-sulfide. The gray is mostly silicate, with the darker gray areas more magnesium-rich, while the lighter gray areas are more iron-rich. The roundish objects, and some fragments of them, that tend to contain most of the small, bright metal grains are called chondrules, which formed as molten droplets. They are set in a very fine-grained matrix, which is where the organic compounds and presolar grains are found. Image credit: Carnegie Institution for Science / Conel M. O’D. Alexander.

Researchers Find Extraterrestrial Amino Acids in Antarctic Meteorite

Aug 31, 2020 by News Staff

A team of astrobiologists from NASA’s Goddard Space Flight Center and the Carnegie Institution for Science has found a wide diversity of amino acids...

This high-resolution scanning electron microscope image shows an unusual tube-like structural form that is less than 1/100th the width of a human hair in size found in the Martian meteorite ALH84001. Image credit: NASA.

Immune System of Humans, Other Mammals Could Struggle to Fight Extraterrestrial Microorganisms

Jul 23, 2020 by News Staff

In a new study published in the journal Microorganisms, a team of researchers from the UK, the Netherlands and Germany tested how mammalian immune cells...