SciencefromMail Online3 weeks agoScientists left baffled by bizarre planetary system that is INSIDE OUTLHS 1903 is an 'inside-out' system: two gas planets sit inside a distant rocky planet that likely formed after the system's gas was depleted.
SciencefromBig Think1 month agoAsk Ethan: How long can the longest-lived star shine?Lowest-mass red dwarf stars can live for tens to hundreds of trillions of years, with lifetime primarily determined by mass and composition (metallicity).