Scientists use space telescopes like JWST to analyze exoplanet atmospheres for biosignatures such as oxygen and methane that could indicate alien life. While recent breakthroughs show promise, false positives and atmospheric complexity mean definitive proof may still be years away.
In 2020, astronomers detected phosphine—a gas produced by life on Earth—in Venus's toxic clouds, sparking debate about alien microbes versus unknown chemistry. After data controversies and a 2024 reconfirmation with ammonia detection, multiple missions (NASA's DAVINCI/VERITAS, ESA's EnVision, Rocket Lab's Morning Star) will investigate Venus's atmosphere by 2035. Whether phosphine signals life or reveals new planetary chemistry, the answer will redefine habitability, reshape our search for ex...
Loading featured articles...