NASA-Funded Studies Suggest Sun's Ancient Past Influenced Earth's Climate and Early Life

Two recent NASA-funded studies propose that events from the Sun's distant past, including its travels through dense regions of the Milky Way and violent superflares in its youth, may have significantly influenced Earth's climate. These findings could help explain ancient ice ages and how the early Earth remained warm enough for liquid water, potentially supporting the emergence of life, even when the Sun was much dimmer.