5 Ice Cold Facts of Planet Uranus

Planet Uranus it he coldest and has the 3rd largest radius for any planet in the solar system. It’s tilted at more 90°, it has faint rings and has 27 moons.

Earth Shape Oblate Spheroid

Shape of the Earth: The Oblate Spheroid

Earth is not a perfect sphere. In fact, it’s in the shape of an oblate spheroid. Earth shape bulges at the equator and flattens at the north and south pole.

How Far Is Moon From Earth Lunar Distance

How Far Is the Moon?

If only there was a ruler long enough to reach the moon. Over the years, astronomers have used parallax, radar and laser ranging to measure lunar distance.