Add Yahoo as a preferred source to see more of our stories on Google. What is summer solstice? Here's why people celebrate the first day of summer and whether it happens on the same day every year.

In 2024, June 20 marks the summer solstice, the first official day of astronomical summer. “Solstice” means the sun has gotten as high in the sky as it’s going to get for the year; on Thursday, that ...

All the planets in our solar system have summer solstices. On Mars, the solstice occurs a few days after Earth’s, in June. On Uranus, the summer solstice happens once every 84 years. The next one will ...

Fun facts about the summer solstice, the longest day of the year What is summer solstice? Here's why people celebrate the first day of summer and whether it happens on the same day every year.