"Galileo Mission: Uncovering Signs of Life on Earth?"

The Galileo spacecraft, on its way to Jupiter, captured images of Earth during flybys in 1990 and 1992, which have been used by astronomers to study our planet as a potential analog for exoplanets. A recent study focused on analyzing disk-integrated images from Galileo to understand what they could reveal about Earth's characteristics. While the spectral data was somewhat limited, the team was able to detect an oxygen absorption line and observe changes in albedo, providing insights into Earth's habitability. This research serves as a baseline for identifying potentially habitable exoplanets and understanding how life-bearing planets might appear from a distance.