The sun undergoes such a reversal every 11 years, which marks an important stage in the solar cycle. The shift in polarity marks the point at which the sun is halfway through solar maximum ...

Finding latitude is easy enough. The first thing you need to do is measure the angle between the horizon and the sun when the sun is at its highest point, which is right around noontime on your watch.

Winter is when the northern hemisphere (where we live) is tilted away from the Sun. Sunlight hits the northern hemisphere at a shallow angle. This spreads sunlight over a wide area so it is weaker ...

“You are familiar with this because sometimes you wear a polarizing filter right on your face—sunglasses that filter out certain angles ... important because scientists do not know why the sun ...