The Rossiter-MacLaughlin Effect Can Actually Change the Color of Stars

It's obvious that an object passing in front of a star can dim the star's light, but it can also change the color of the star's light. The Rossiter-McLaughlin Effect, which explains the mechanism of that shift in color, has been used to find "hot Jupiter" exoplanets, and has even been measured during the transit of… »2/20/13 2:45pm2/20/13 2:45pm