Bulging stars mess with planet’s seasons
Spring, autumn could be hotter than summer for worlds with tilted orbits
STAR SPIN Rapidly twirling stars such as Altair (shown; interferometer image, left) have an equatorial bulge that makes them emit more light from their poles than their equator, which could create strange seasons on any orbiting planets.
From left: Zina Deretsky/National Science Foundation; Steve Golden/Caltech/JPL/NASA