"Seeing crepuscular rays on Earth is a somewhat rare event, as conditions have to be just right at either sunset or sunrise for the Sun’s rays to appear as though they are diverging outward from the Sun. But seeing them from space is even more rare.
This picture taken by an astronaut on the International Space Station provides an unusual viewing perspective from above of crepuscular rays. Why are they parallel in this picture instead of radiating in an outward fashion like they appear to us on Earth? This image shows the true nature of crepuscular rays: they really are parallel !"
via universetoday.com
