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

The moon slipped between the Earth and the sun on Saturday, casting a shadow on our planet in parts of the United States, ...

North America is the third largest continent in the world. It is located in the Northern Hemisphere. The north of the continent is within the Arctic Circle and the Tropic of Cancer passes through ...

The vernal equinox arrives today, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the sun will be directly overhead at noon.