Longest Line of Latitude: Lines of latitude are imaginary horizontal lines that circle the Earth, helping measure how far north or south a location is from the Equator. These lines play a crucial role ...

Some 12,000 years ago, at the start of the current geologic epoch called the Holocene, the average global temperature was roughly 6 degrees Centigrade lower than the average temperature from then to ...

Peak sunshine has arrived in the Northern Hemisphere — the summer solstice. Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It’s ...