Electromagnetic spectrum resources are a very important resource. With the rapid development of radio technology, electromagnetic spectrum resources have become scarce. Abuse of spectrum resources and ...

Summer Solstice 2025: The Summer Solstice marks the longest day of the year and usually falls between June 20 and June 22. Also known as the midsummer or Estival solstice, its name comes from the ...

Astronomers Saturday have confirmed that June 21 is observed as the longest day and the shortest night of the year, marking the peak of summer in the Northern Hemisphere, an event that also ...

Dubai: At precisely 5:42 a.m. local time on Saturday, June 21, 2025, the sun stood directly above the Tropic of Cancer, signaling the arrival of the summer solstice across Saudi Arabia and the ...

The summer solstice, the longest day of the year in the Northern Hemisphere, falls on June 20 this year in North America, and June 21 in Europe.

This solstice falls between June 20 and 22. Meanwhile, at the winter solstice, the Northern Hemisphere is leaning away from the sun — leading to the shortest day and longest night of the year.

Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It's the opposite in the Southern Hemisphere, where it is the shortest day of the ...

The solstices mark the times during the year when this tilt is at its most extreme, and days and nights are at their most unequal. During the Northern Hemisphere's summer solstice, the upper half of ...

Meanwhile, the equinoxes occur in March and September. Each date heralds the official start of a new season. Meanwhile, the summer solstice is the longest day of the year with the shortest night.

The Southern Hemisphere's winter solstice will occur on June 21. Carla Mascarenhas is the NSW correspondent covering breaking news, state politics and investigations. She is based in Sydney ...