Northwestern researchers find salt clouds on exoplanet GJ 504b 57 light-years away

Northwestern University astrophysicists, led by Aneesh Baburaj, discovered that GJ 504b, a pink-hued exoplanet 57 light-years from Earth, is surrounded by clouds containing sodium compounds. The finding was reported in an NBC News interview with Baburaj and emerges from research that also raises questions about whether GJ 504b qualifies as a planet under current astronomical classification standards.