The summer solstice marks the official start of summer. It brings the longest day and shortest night of the year for the 88 percent of Earth's people who live in the Northern Hemisphere.

Thursday, June 20 is the official first day of northern astronomical summer for 2024 — Summer Solstice — which is ... (princessdlaf/Getty Images) Globes are nearly always tilted to one side ...

with the arrival of the summer solstice. So what is a solstice, exactly? It's the result of Earth's north-south axis being tilted 23.4 degrees toward the sun. This tilt causes different amounts of ...

Summary: The summer solstice marks the longest day of the year and the winter solstice the longest night. This assembly is particularly suitable on, or near, the summer solstice - usually 21 June.