'Manhattanhenge' effect has sun aligned perfectly with street grid, creating 'radiant glow' In Manhattan, a special solar event occurs just twice a year. By Josiah Bates. May 29, 2018, 9:52 AM.

‘Manhattanhenge’ effect has sun aligned perfectly with street grid, creating ‘radiant glow’ by: ABC News. Posted: May 31, 2018 / 04:09 AM EDT. Updated: May 31, 2018 / 06:03 AM EDT.