'Star Trek: Picard' Season 2 episode 3 offers epic updates to classic storylines

Nearby star could help explain why our Sun didn’t have sunspots for 70 years

Carina the Keel, home to an erupting star

Liquid metal, ruby and sapphire could rain down on one hemisphere of a blisteringly hot giant exoplanet that is tidally locked in a tight orbit around its star. That is the conclusion of astronomers who have developed a detailed 3D model of the atmosphere of WASP-121b.