A astronomy enthusiast using his mobile
A astronomy enthusiast using his mobile phone, takes a photo of Venus sliding across the sun, off a projection, from a weather observatory in Manila on June 6, 2012. Sky-gazers around the world held up their telescopes and viewing glasses June 6, to watch Venus slide across the sun — a rare celestial phenomenon that will not happen again for more than 100 years. Other small dots on the right of the photo are called sun spots. AFP PHOTO/TED ALJIBE (Photo credit should read TED ALJIBE/AFP/GettyImages)