Astrobiology46- Page

The original role of proteins was to stabilize RNA, rather than to act as enzymes. (a) The peptidyl transferase center of the Escherichia coli ribosome . The figure shows the

Legends: FA—fatty acid; PL—phospholipid (i.e., phosphatidic acid here); G—glycerophosphate; Gp—glycerophosphate precursor (e.g., glycerol); GR—glycerophosphate-synthetase ribozyme (here representing the ribozyme favoring the synthesis of phospholipids). The glycerophosphates produced through the catalysis

‘Oumuamua — NASA Material can apparently move between planets, at least on rare occasions. For example, meteorites have been found on Earth that appear to have originated on Mars, or

The 1.3 mm continuum and the integrated intensity images for CO J = 2 − 1, C18O J = 2 − 1, and CH3OH 51,4 – 42,4 transitions. For each

The Milky Way — NASA.gov Editor’s note: As you have probably heard by now the elements that compose Earth and all of the life on it came from the stars.

The solar wind flows around Earth’s magnetic field. A new NASA study suggests that the amount of oxygen in the atmosphere and strength of the magnetic field have been correlated

The 112-foot DSS-56 in Madrid, Spain — NASA.gov The Deep Space Network (DSN) is the primary means of commanding, tracking, and receiving data from all of NASA’s deep space missions,

ChemOrigins The origin of life is one of the most compelling questions in science. While experimental prebiotic chemistry has produced a wide range of reactions and plausible pathways, the resulting

An artist rendition of comet C/2014 UN271, the largest known comet in the Oort Cloud. Credit: NSF/AUI/NSF NRAO/M.Weiss A team of astronomers has made a groundbreaking discovery by detecting molecular