May’s night sky is packed with astronomical events—find out when and where to look for meteor showers, ancient star clusters, ...

That means the sun’s warmth and light fall unequally on the northern and southern halves of the planet. During the equinox, the Earth’s axis and its orbit line up so that both hemispheres get ...

Bonus time! It turns out you get a tad more daylight than darkness on the equinox — and how much so depends where you are on the planet. How does that happen when it’s supposed to be 12 hours ...

That means the sun’s warmth and light fall unequally on the northern and southern halves of the planet. During the equinox, the Earth’s axis and its orbit line up so that both hemispheres get ...

You probably know that Earth Day is celebrated on April 22, but did you know there is historically a second Earth Day?