New York City residents and visitors are treated to a phenomenon twice a year known as Manhattanhenge, when the setting sun aligns with the Manhattan street grid and sinks below the horizon framed in a canyon of skyscrapers. The first Manhattanhenge of the year took place Thursday at sunset, with a more fuller version of the setting sun expected to be seen Friday. The sunset spectacle occurs again on July 11 and 12. Astrophysicist Neil deGrasse Tyson coined the name in 1997 after being inspired by a visit to Stonehenge. Manhattanhenge happens about three weeks before and after the summer solstice.