Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It’s ...

Summer gets its official start in the Northern Hemisphere with the arrival of the summer solstice. The sun will trace its ...

People around the world traditionally observe the change of seasons with bonfires and festivals, and Fête de la Musique celebrations. Astronomers can calculate an exact moment for the solstice, when ...