When it goes dark tonight have a look at the setting sun and rising moon. You may notice that they look bigger than when they are high in the sky. But it’s just an optical illusion, that is caused be various reason: When the sun rises and sets, there are things like mountains, trees and buildings beside it that make it seem very huge. When the sun is high above us in the sky there is nothing... 

This planet was discovered by Galileo and it is also known as the ring planet. Haven’t you guessed? Yes, it is Saturn! Though Saturn may be best known for its rings, there are other interesting things about the planet and its surrounding moons. Saturn may be the second largest planet in the solar system, but it holds the record for least dense. Water has a density of 1.0 grams per centimeter cubed.... 

Yes it is, due to a transfer of Earth’s rotational momentum to the Moon’s orbital momentum as tidal friction slows the Earth’s rotation. That increase in the Moon’s speed is causing it to slowly recede from Earth (about 4 cm per year), increasing its orbital period and the length of a month as well. To picture what is happening, imagine yourself riding a bicycle on a track built... 

The world’s largest diamond was the Cullinan, found in South Africa in 1905. It weighed 3,106.75 carats uncut. It was cut into the Great Star of Africa, weighing 530.2 carats, the Lesser Star of Africa, which weighs 317.40 carats, and 104 other diamonds of nearly flawless color and clarity. They now form part of the British crown jewels. The world’s largest documented polished diamond –... 

You may say, “Of course the Earth.” Right now, it’s the worst that most humans I know ever experience. But there’s lots of wilder weather elsewhere. Mars can whip up hurricane-like storms four times bigger than Texas. Dust storms on the red planet can obscure the entire globe! Jupiter has a hurricane twice the size our entire planet, and it’s lasted for at least three centuries...