Stars and constellations Winter officially commences in the Northern Hemisphere on Dec. 21 at 4:21 a.m. when the sun reaches the southernmost position on the ecliptic, its apparent annual path ...

This year's first day of spring in the Northern Hemisphere occurs precisely at 5:01 a.m. EST on March 20, according to NASA. The date and time of the equinox varies slightly from year to year.

This story was updated to add new information. Spring has sprung, bringing warmer days and blooming flowers. Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere.

1973 - 45; 1983 - 51; 1984 - 65; 1998 - 53; 2024 - 58 "4 of the 5 years ended up with below-average Northern Hemisphere named storms, but 2024 was just slightly below normal," he said.

WASHINGTON — Solar storms persisting from the weekend may produce faint colorful auroras across the Northern Hemisphere, with little disruption to power and communications, space forecasters ...

Summer gets its official start in the Northern Hemisphere with the arrival of the summer solstice. The sun will trace its highest, longest arc across the sky Friday, making for the longest day and ...

JACKSONVILLE, Fla. — The 2025 tropical cyclone season is off to an unusually calm start across the Northern Hemisphere, marking the slowest beginning to the season since 1973, just over half a ...

The northern lights — also called aurora borealis — could be visible in Alaska, Washington, Montana, North Dakota, Minnesota, Michigan, Maine, northern parts of Idaho, Wyoming, Iowa, New York ...

FARGO — The Northern Hemisphere is a remarkably different part of the world than the Southern Hemisphere. About two-thirds of the landmass of our planet is in the Northern Hemisphere at present ...

Summer officially begins Friday, June 20, at 10:41 p.m. Eastern time. That’s the precise moment of the summer solstice — making for the longest, brightest day of the year in the Northern ...