Biochemistry / chemistry

A most anticipated analysis in the mission of the space probe Rosetta concerned the water present on the comet 67P/Churyumov-Gerasimenko. The reason is that scientists are looking for a definitive answer to the problem of the origin of water on Earth. Comets are among the main candidates but the analyzes revealed by ESA and published in the journal “Science” show that the water analyzed by Rosetta is different from that on Earth.

The pieces of the Tunable Laser Spectrometer (TLS) (Image NASA/JPL-Caltech)

Pacific Gas and Electric Company (PG&E) is a subsidiary of PG&E Corporation and is a major natural gas utility in the USA. The company is now testing a new device for the detection of methane leaks based on an instrument of the Mars Rover Curiosity. Developed to find out if there is methane on Mars, a possible trace of biochemical reactions, this instrument is a thousand times more sensitive than those used so far by PG&E to detect leaks of methane.

Google announced the Baseline Study project, a detailed study on the biological level of human beings to determine what a healthy person should be. The initial study includes 175 people of which an enormous amount of medical information will be collected. A team that includes dozens of specialists led by molecular biologist Andrew Conrad will use this information to create a portrait of a person in perfect health.

Frederick Sanger

Yesterday Frederick Sanger died. He was a British biochemist described by many as one of a fathers of genetics and one of the greatest scientists in the world and not only of his generation. Born in 1918, he received two Nobel Prizes in Chemistry: one in 1958 and one in 1980.