BOTH Emden's 1 old hydrodynamic solar theory and the more modern thermo-hydrodynamical solar theory due to Bjerknes 2 lead to a higher temperature at the poles than at the equator of the sun. Bjerknes ...

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

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. PDT (12:30 a.m. EDT on March 20). Astronomers are ...

GRAND RAPIDS, Mich. (WOOD) — At the end of this week, the sun will cross the celestial equator from south to north and the spring season will begin. The vernal equinox will occur on March 20 at 5:37 a ...

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

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 ...

Mars remains the most visible of the evening planets in September, but the moon and Saturn have a special daylight encounter on the morning of Sept. 10. Fall officially begins when the sun crosses the ...

At any time of day, you could theoretically set up a camera to take a picture of the landscape that encompasses the apparent position of the Sun in the sky. If you came back the next day at the exact ...

A red leaf spirals to the forest floor. Frost lingers on shaded green grass after sunrise. So it begins. Small changes soon add up to a brand new season, one that starts today Sept. 22 at 3:44 p.m.

The equator is the part of the Earth that gets the most sunlight throughout the year, Why do people living near the Equator have darker skin [BoredPanda] The equator is the part of the Earth that gets ...