Atop a frigid mountain peak in Iran, skywatcher Amir Hossein Abolfath captured a phenomenal sun setting with a brilliant flash of green. This photo of the sun setting over the Zagros Mountains of Iran ...

A spectacular "firefall" wowed nature-watchers in California's Yosemite National Park on Wednesday, with the setting sun lighting up a waterfall like a ribbon of fire. For a couple of weeks every year ...

Twice a year, during the spring and fall equinoxes, the rising and setting sun lines up with Chicago’s east-west street grid, creating spectacular photo opportunities as the sun is framed within ...

The world-famous New York City Skyline will be the focal point of a captivating astronomical alignment this week, an event known as Manhattanhenge. Manhattanhenge occurs when the setting sun aligns ...