Complex sentence: Astronomer Sara Seager proposes a revised equation that focuses on the search for planets with biosignature gases, gases produced by living organisms that can accumulate in a planet atmosphere to levels that can be detected with remote space telescopes.
Split into simpler sentences: Astronomer Sara Seager proposed a revised equation that focuses on the search for planets with biosignature gases. These gases are produced by living organisms that can accumulate in a planet atmosphere to levels that can be detected with remote space telescopes.