|Biology Department Head Frank Romano shot this sunrise before
a storm in the Gulf of Mexico, above, during a NOAA National Marine
Fishery Service research voyage with students last fall. Below
is a keyhole sunset made in 2003. The third photo shows an enlargement
of the keyhole effect. Dr. Romano, a former photojournalist, said
the optical illusion can be photographed when the atmosphere is
absolutely clear to the horizon.