There will be three full moons during the summer. And the sky this season has a number of bright stars that form easily ...

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

Friday, June 20, marks the first official day of summer in 2025. It's also the date of the summer solstice. The first day of ...

There's also astronomical summer, which runs from the summer solstice to the autumn equinox. In 2025, that means astronomical summer will be from June 20 through Sept. 22.

The summer solstice occurs when the Earth's semi-axis in a given hemisphere reaches its maximum tilt toward the sun, ...

There's also astronomical summer, which runs from the summer solstice to the autumn equinox. In 2025, that means astronomical summer will be from June 20 through Sept. 22.

There's also astronomical summer, which runs from the summer solstice to the autumn equinox. In 2025, that means astronomical summer will be from June 20 through Sept. 22.

There's also astronomical summer, which runs from the summer solstice to the autumn equinox. In 2025, that means astronomical summer will be from June 20 through Sept. 22.

Friday, June 20, marks the first official day of summer in 2025. It's also the date of the summer solstice. The first day of summer changes annually, arriving on June 20, 21 or 22. That's because the ...