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

For those north of the equator, the solstice marks the longest day and the shortest night of the year. The Earth spins on a ...

Have you ever wondered why days are longer in summer and shorter in winter? This happens because of two special astronomical ...

Solstices occur because Earth’s axis of rotation is tilted about ... During the Northern Hemisphere's winter solstice—which always falls around December 22—the Southern Hemisphere gets ...

Friday, June 20th, is the start of the astronomical summer season. More specifically, the summer solstice begins this year at 10:42 PM ET.

The sun will appear lower in the sky each day until the winter solstice, on Dec. 21 ... in the sky each day changes because Earth spins on an axis that is tilted 23.5 degrees away from vertical.

What causes Sydney's winter solstice? The solstice is caused by the tilt of the Earth’s axis in relation to the sun. During the winter solstice in the Southern Hemisphere, the tilt is such that ...

At the winter solstice, it's only 91.4 million miles away. The seasons are caused by the Earth's axis being tilted at a 23.5 degree angle. When the Northern Hemisphere is tilted toward the sun ...