Every morning, here on Earth, the sun rises in the East – and the day begins.Later it sets in the West – and it becomes night. But have you ever wondered why that happens? Humans once believed ...

the Earth, Sun and Moon why we get day and night what we can see during the day and at night why days and nights are different at different times of year. And you can test what you've learned with ...

Jamie Carter is an award-winning reporter who covers the night sky. A single rotation ... the slight increase in the length of a day may be because Earth’s inner core has been slowing down ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

The solstice occurs at the same time everywhere on Earth, this year it happens Dec. 21 at 4:21 a.m. EST. For the Northern Hemisphere, it marks the astronomical start of winter because the North Pole ...

You won't see a majestic line of planets on Jan. 25 the way people on social media are promising, but you will see four bright planets if you look up.

Earth Day is on April 22—celebrate the day with these Earth Day quotes that remind us to take care of our beautiful planet ...

Learn about Earth Day founder Gaylord Nelson (1916–2005) and how environmental disasters of his day inspired the creation of Earth Day in 1970. On December 7, 1972, Apollo 17 astronauts captured a now ...

If we think the day and night on the moon are the same as how they are on the earth, we are fully mistaken. The days and nights on the moon called lunar day and lunar night are interesting ...