Nightly News | February 20, 2012
>>> photographers are right now perched on cliffs in yosemite because it's that time of year when the sun and the water and the face of the cliff all line up for a brief moment and make photos like this possible. it's a waterfall called horsetail on the granite face of el capitan but getting the shot relies on things like astronomy, physics, weather and the perfect sunset. our equivalent in the big city is called manhattanhenge. when the sun lines up with the east-west streets two days a year in july. if you can't get to yosemite, it's not bad at all.