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An international team has found sugars essential to life in meteorites. The new discovery adds to the growing list of biologically important compounds that have been found in meteorites, supporting the hypothesis that chemical reactions in asteroids—the parent bodies of many meteorites—can make some of life's ingredients. If correct, meteorite bombardment on ancient Earth may have assisted the origin of life with a supply of life's building blocks.
The team discovered ribose and other bio-essential sugars including arabinose and xylose in two different meteorites that are rich in carbon, NWA 801 (type CR2) and Murchison (type CM2). Ribose is a crucial component of RNA (ribonucleic acid). In much of modern life, RNA serves as a messenger molecule, copying genetic instructions from the DNA molecule (deoxyribonucleic acid) and delivering them to molecular factories within the cell called ribosomes that read the RNA to build specific proteins needed to carry out life processes.
Using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the Subaru Telescope, astronomers have detected an unidentified infrared emission band from comet 21P/Giacobini-Zinner (hereafter, comet 21P/G-Z) in addition to the thermal emissions from silicate and carbon grains. These unidentified infrared emissions are likely due to complex organic molecules, both aliphatic and aromatic hydrocarbons, contaminated by N- or O-atoms. Considering the properties of the dust and organic molecules, comet 21P/G-Z might have originated from the circumplanetary disk of a giant planet (like Jupiter or Saturn) where it was warmer than the typical comet-forming regions.
I believe life exist everywhere if given even the barest environment and slightest chance; life seems to find a way....
originally posted by: Groot
When are we going to stop kidding ourselves and just admit that life is prevalent throughout the universe?
I would think it would by obvious just by looking at the life we discover at the extreme conditions on Earth.
Have you seen the lastest release of info about Titan?
bgr.com...
originally posted by: carsforkids
a reply to: 727Sky
Respectfully
I do not understand this one bit
I believe life exist everywhere if given even the barest environment and slightest chance; life seems to find a way....
How is this any different from saying God did it?
Admitting upfront so everyone sees I'm on the level with
no delusions. I'm just a lowly truck driver.
viruluent
It exists where there is any potential for it.
originally posted by: carsforkids
a reply to: 727Sky
Respectfully
I do not understand this one bit
I believe life exist everywhere if given even the barest environment and slightest chance; life seems to find a way....
How is this any different from saying God did it?
Admitting upfront so everyone sees I'm on the level with
no delusions. I'm just a lowly truck driver.
originally posted by: gallop
originally posted by: carsforkids
a reply to: 727Sky
Respectfully
I do not understand this one bit
I believe life exist everywhere if given even the barest environment and slightest chance; life seems to find a way....
How is this any different from saying God did it?
Admitting upfront so everyone sees I'm on the level with
no delusions. I'm just a lowly truck driver.
Because life is viruluent. It exists where there is any potential for it.
How does that even come close to saying a magical invisible sky wizard willed it ?