As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

Skygazers across a broad swathe of the Northern Hemisphere will have a chance to see the Moon take a bite out of the Sun on Saturday when a partial solar eclipse sweeps from eastern Canada to Siberia.

Meteorologist Taylor Stephenson explains the astronomy and meteorology behind the formation of the Northern Lights.

Kin Cheung/Associated Press Supported by By The New York Times As the sun rose in the Northern Hemisphere on Saturday, the moon cut across Earth’s orbit and took a bite out of the sun.