WATCH: Optical Illusion Video Shows The Moon Yo-Yo Across The Sun NASA captured strange images of the moon moving back and forth across the surface of the sun. This event called retrograde motion also happens when outer planets that move slower into their orbits are observed from Earth. by Rubi Valdez
'Spray and Pray' iMessage Scam Haunts iPhone Owners: How to Avoid Losing Your Hard-Earned Money From it