Researchers have invented a range of instruments from giant telescopes to rovers to search for life in outer space, but so far, these efforts have yielded no definitive evidence that it exists beyond Earth. Now scientists have developed a new tool that can look for signs of life with 10,000 times more sensitivity than instruments carried on previous spaceflight missions. Their report appears in the ACS journal Analytical Chemistry.
One path to finding life on other planets — or moons — involves looking for signature patterns of amino acids, which are organic molecules that are critical to life on Earth. But looking for these molecules on Mars or other planetary surfaces has been a major challenge. The Curiosity rover exploring Mars attempted to accomplish this, but the rover’s experiments to identify organic chemicals in Martian