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Could a water signature be coming from a star?! When @NASAWebb studied the exoplanet GJ 486 b and its host star, it saw H2O. On the planet, it would indicate an atmosphere. The water could also be vapor lingering in a cooler sunspot of its red dwarf star! https://go.nasa.gov/40UaRy1
#NASAExoplanets

Webb Finds Water Vapor, But From a Rocky Planet or Its Star?

Astronomers used NASA’s James Webb Space Telescope to study a rocky exoplanet known as GJ 486 b, and their observations using Webb’s Near-Infrared Spectrograph (NIRSpec) show hints of water vapor.
Jessica Evans (NASA)
#NASAExoplanets

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