Mars has been hitting the headlines lately as scientists reveal more and more about the Red Planet’s past. But could this latest piece of evidence really be it? Have scientists really found solid proof of life on Mars?

Strange methane emissions have been detected by NASA researchers in data collected by one of the rover Curiosity’s instruments, and scientists believe that they are being caused by life forms, most likely bacteria. On Earth, life forms are the primary producers of methane, although there could be other possible explanations.
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An inexplicable sleeping sickness is affecting one in ten residents of a village in Kazakhstan in Russia.

Villagers in Kalachi have been affected by the mysterious disease for the past two years, but to date, no cause for the illness has been determined and, despite teams of virologists, radiologists, toxicologists and doctors collaborating to solve the mystery, they have been unable to find a cure.
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Despite the fact that it is believed to make up around eighty per cent of the matter in the universe, so-called "dark matter" remains an enigma to scientists. It is totally invisible as it neither absorbs or emits light, and its presence has so far been determined only via its gravitational interaction with visible matter.
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In 1976, the Viking program’s orbiter and lander reached Mars, and the lander’s life experiments returned data that the scientists who had designed them had expected to see if living organisms were present in the soil. However, the Jet Propulsion Laboratory, fearing that a positive finding about life on the red planet would cause their Mars funding to be diverted to the manned spaceflight program, issued various denials and succeeded in clouding the picture sufficiently to insure that robotic programs would continue.
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