CALIFORNIA: Methane gas has been found in Mars’ atmosphere, which could be a strong hint that there is life on the planet.It was first spotted by powerful telescopes on Earth. On Earth, the gas is counted as a “greenhouse gas”, partly to blame for global warming. Since the gas only lives for a short time, scientists think it keeps on being produced. This could be from volcanoes or from tiny living microbes. The gas was found by several large telescopes around the world, including the infrared telescope on Hawaii and the Gemini South observatory in Chile. The Mars Express craft also confirmed it. But the scientists are a bit puzzled about where it is coming from.