Astrobiology12- Page

A sea spider preserved in osmium tetroxide for the purpose of enhancing tissue contrast for electron microscopy. This male sea spider mated with two separate females. This is evident due

A Crystals in a cuvette with a 60 mg/ml protein concentration. The image was obtained by the camera installed in the bioassembler “Organ.Aut” on the ISS. B, C Typical crystals selected

Crystallization of bacteria and archaea. (A) Woese’s model. Phylogenetic analysis of rDNA revealed three domains of life, Bacteria, Archaea, and Eucarya. (a) Symbiosis between Archaea and α-Proteobacteria could yield Eucarya

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