PASADENA, Calif., Feb. 21 (UPI) -- A runaway star plunging through the Milky Way galaxy has created a giant shock wave, captured in an image from the Spitzer Space Telescope, NASA says.
The speeding star is known as Kappa Cassiopeiae -- a massive, hot supergiant moving at around 2.5 million mph relative to its neighbors -- the space agency reported.