Don't miss the big stories. Like us on Facebook. Hooray! Springtime has finally arrived — at least in Earth's Northern Hemisphere. This year's official onset of spring occurs on March 19 at 9:30 p.m.

The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

The equator is the part of the Earth that gets the most sunlight throughout the year, so the sun plays a huge part in why people who live near the equator have darker skin. This area gets more direct ...

MOLINE, Ill. — On July 5, 2021, a phenomenon known as the Aphelion will occur, meaning the earth will be at its farthest point away from the sun for the year. Now, you would think that would mean less ...

It's almost time to get your coats out, pour yourself a large pumpkin spice latte, and start picking your conkers. That's because autumn officially begins tonight! The autumn equinox takes place at 19 ...

WASHINGTON — The temps drop as if we flipped a switch. Our first full day of fall Friday will be breezy with highs only in the 60s. The last time we held in the 60s was May 24. Lows Friday night will ...

Space weather experts warn that solar activity will persist or even increase after solar maximum has ended and we enter a phase of the solar cycle dubbed the "battle zone." When you purchase through ...

Spring, summer, fall and winter – the seasons on Earth change every few months, around the same time every year. It's easy to take this cycle for granted here on Earth, but not every planet has a ...

The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store ...

The equatorial coordinate system projects Earth's latitude and longitude onto the celestial sphere, using declination (angular distance from the celestial equator, measured in degrees) and right ...