UK and Australian astronomers have developed a powerful new tool that could help detect chemical signs of alien life on planets outside of the Solar System. The newly developed tool can sniff out methane molecules to detect alien life. This image shows the Earth-sized, potentially habitable exoplanet Kepler-186f. Image credit: NASA Ames / SETI Institute / JPL-CalTech. To find out what extrasolar planets are made of, astronomers analyze the way in...
