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Whatever organic chemicals may be produced on Mars or delivered to Mars face several possible modes of being transformed or destroyed. Organic chemicals are molecular building block of life, although they can be made without the presence of life. Whether or not organic chemicals are produced by processes on Mars, some are delivered to the planet aboard meteorites and dust from asteroids and comets.

Whatever organic chemicals may be produced on Mars or delivered to Mars face several possible modes of being transformed or destroyed. Organic chemicals are molecular building block of life, although they can be made without the presence of life. Whether or not organic chemicals are produced by processes on Mars, some are delivered to the planet aboard meteorites and dust from asteroids and comets.

Only 15 minutes after its closest approach to Pluto on July 14, 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. The smooth expanse of the informally named icy plain Sputnik Planum (right) is flanked on the left by rugged mountains up to 11,000 feet (3,500 meters) high, including the informally named Norgay Montes in the foreground and Hillary Montes on the…

Only 15 minutes after its closest approach to Pluto on July 14, 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. The smooth expanse of the informally named icy plain Sputnik Planum (right) is flanked on the left by rugged mountains up to 11,000 feet (3,500 meters) high, including the informally named Norgay Montes in the foreground and Hillary Montes on the…

Hellas Basin Mars Acquisition date: 26 December 2009 Local Mars time: 2:42 PM Latitude (centered): -37.455° Longitude (East): 57.636° Range to target site: 286.9 km (179.3 miles) Original image scale range: 57.4 cm/pixel (with 2 x 2 binning) so objects ~172 cm across are resolved Map projected scale: 50 cm/pixel and North is up

Hellas Basin Mars Acquisition date: 26 December 2009 Local Mars time: 2:42 PM Latitude (centered): -37.455° Longitude (East): 57.636° Range to target site: 286.9 km (179.3 miles) Original image scale range: 57.4 cm/pixel (with 2 x 2 binning) so objects ~172 cm across are resolved Map projected scale: 50 cm/pixel and North is up

Una proyección cilíndrica de Júpiter, composición de una serie de fotos tomadas por la nave espacial Cassini durante su sobrevuelo del planeta en diciembre del 2000.  crédito:NASA/JPL/Space Science Institute.

Una proyección cilíndrica de Júpiter, composición de una serie de fotos tomadas por la nave espacial Cassini durante su sobrevuelo del planeta en diciembre del 2000. crédito:NASA/JPL/Space Science Institute.

Space in Images - 2004 - 10 - Perspective view of rim of Crater Huygens, looking north

Space in Images - 2004 - 10 - Perspective view of rim of Crater Huygens, looking north

Long ago, in the largest canyon system in our solar system, vibrations from "marsquakes" shook soft sediments that had accumulated in Martian lakes. The shaken sediments formed features that now appear as a series of low hills apparent in a geological map based on new NASA images. Enhanced color image of the Candor Colles region of Candor Chasma, Mars. Image is 1 km (0.62 miles) across. (USGS Astrogeology Science Center, Flagstaff, Arizona)

Long ago, in the largest canyon system in our solar system, vibrations from "marsquakes" shook soft sediments that had accumulated in Martian lakes. The shaken sediments formed features that now appear as a series of low hills apparent in a geological map based on new NASA images. Enhanced color image of the Candor Colles region of Candor Chasma, Mars. Image is 1 km (0.62 miles) across. (USGS Astrogeology Science Center, Flagstaff, Arizona)

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