A huge sun eruption combines with speedy solar wind from a "coronal hole" for a weekend aurora show, experts predict.

Godolphin's Sovereignty (Into Mischief), a smashing winner of the GII Coolmore Fountain of Youth Stakes on seasonal debut Mar. 1, drew widest in a field of 10 and was made the 8-5 favorite on the ...

While sifting out signatures of supernova remnants, a high-schooler stumbled upon the afterglow of a dormant black hole. It ...