sidereal rotation period

How Long is a Day on the Moon?

A single day on the Moon lasts the equivalent of 29.5 Earth days, which is the result of its tidally-locked…

3 years ago

Why Does the Sun Rise in the East (and Set in the West)?

Since time immemorial, humans have known that the Sun will rise in the east and set in the west. But…

4 years ago

10 Interesting Facts About Earth

We've lived on planet Earth all of our lives, but how much does the average person know about the planet…

4 years ago

How Long Is A Day On The Other Planets Of The Solar System?

We are all familiar with how long a day is here on Earth. But how long is a day on…

5 years ago