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

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of possible daylight and the shortest night.

The first day of summer is marked by the summer solstice, or the longest day of the year. Here's what to know about summer ...

PORTLAND (WGME) --- June 20th marks the summer solstice, the longest day of the year in the Northern Hemisphere. This astronomical event occurs when the North Pole is tilted most directly toward the ...

The summer solstice is a moment in space and time during the annual orbit when our tilted planet's Northern Hemisphere points ...

The first day of summer is June 20. Afterwards, the days will grow shorter as we approach fall, all leading up to the winter solstice.

The summer solstice marks the beginning of astronomical summer each year, typically falling between June 20 and June 22. In meteorology, the official start of the summer season is June 1, marking the ...

Earth makes its closest annual approach of the sun about two weeks after the December solstice, during the Northern Hemisphere's winter. Earth is farthest from the sun about two weeks after the ...