Solstice Date and Significance: The 2026 Summer Solstice occurs on June 21, marking the year's longest day and shortest night in the Northern Hemisphere. Tilt Model Demonstration: A lamp and tilted ...

With the final days of spring upon us and summer approaching, people look forward to the summer solstice, which marks the official astronomical start of the new season.

It's officially the summer solstice which is the longest day of the year and the first day of summer. On Sunday, June 21, at 4:24 a.m. ET, the summer solstice will occur in the Northern Hemisphere, ...

Countries and regions across the Northern Hemisphere will witness the summer solstice on Sunday, marking the astronomical beginning of summer.

The summer solstice is Sunday, marking the longest day of the year in the Northern Hemisphere and the start of astronomical summer.

A sundial specifically designed to show the word "Solstice" for the summer and winter solstice in Valbonne Sophia Antipolis, France. NASA The 2026 summer solstice will occur Sunday, June 21, at 4:24 ...

Sunday, June 21, 2026, will mark the longest day of the year in the Northern Hemisphere. Here’s what will happen in North ...

All about the science and celebration of the Summer Solstice, plus, some oddities about the longest day of the year for 2026.

This year, the Northern Hemisphere's summer solstice occurs on June 21 at 4:24 a.m. EST. South of the Equator, this same moment marks the beginning of winter. Solstices occur at the same time around ...

At last, summer is here, where long sunlit days linger and warm days settle in. The solstice marks the beginning of astronomical summer in the Northern Hemisphere. This day is known as the "longest" ...