Sky Tonight—Feb 25, Scorpius the Scorpion’s stinger stars an early harbinger of spring
For the Pawnee, who roamed the prairie of Kansas and Nebraska, the sky was a calendar, and the stars foretold the change of seasons.
EarthSky Tonight-June 23: Waxing gibbous moon passes near Scorpion’s Heart
So why is Antares red? Because the outer layer of its atmosphere – its “surface” for lack of a better term for a giant ball of gas – is cooler…