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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.

Astrobiologists debate which chemical signatures would hint at life on other…

The Serpent Dust Devil of Mars by NASA: Image by the High Resolution Science Experiment camera on NASA's Mars Orbiter (HiRISE), this dust devil was shot on a late spring afternoon in northern Mars and measures more than 1/2 mile in height. #Dust_Devil #Mars #NASA

Alien organisms may betray their presence by pumping stinky chemicals into their home planets' skies, researchers say.

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This graphic offers comparisons between the amount of an organic chemical named chlorobenzene detected in the "Cumberland" rock sample and amounts of the same compound in samples from three other Martian surface targets analyzed by NASA's Curiosity Mars rover.

The toxic chemical perchlorate may be good news for the possibility of life on Mars, but it will pose a danger to exploring astronaut crews.

from NASA

Curiosity Image Gallery

Martian Dust Storm

10 Galaxies and Weird Facts | Astronomy Is Awesome

10 Galaxies and Weird Facts | Astronomy Is Awesome

#NASA’s #Curiosity Mars rover has found first Martian organic chemicals in material on the surface of #Mars.