Biosignature
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NASA
Resurrecting Ancient Enzymes in NASA’s Search for Life Beyond Earth
NASA-supported scientists have resurrected an enzyme first used by organisms on Earth 3.2-billion years ago and, in the process, have validated a chemical biosignature in rocks that is used to understand ancient life on Earth. The research provides a new understanding of what Earth’s biosphere was like early in our planet’s history and confirms a reliable biosignature that could be…
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NASA
Ultra-low-noise Infrared Detectors for Exoplanet Imaging
One of the ultimate goals in astrophysics is the discovery of Earth-like planets that are capable of hosting life. While thousands of planets have been discovered around other stars, the vast majority of these detections have been made via indirect methods, that is, by detecting the effect of the planet on the star’s light, rather than detecting the planet’s light…
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