Astronomy

Black Holes

Black holes are objects that are very dense and nothing can escape

their gravity, not even light. A black hole puts out the same force on

something far away as any other object of the same mass would. Time

practically stops in the vicinity of a black hole. Black holes are thought to

form when stars or massive objects collapse from their own gravity. This is

called a supernova explosion. There are three types of black holes. Supermasive,

Stellar, and Miniature.

The Moon

Earth has 1 moon. It is 238, 857 miles from earth. Because there is no

atmosphere, the lunar sky is always black. There is also very little gravity.

The gravity on the moon is one-sixth of that on Earth. Someone who weighs 180

pounds on Earth will only weigh 30 pounds on the moon. The moon is about 4 1/2

billion years old. The moon is slowly moving away from Earth. There are eight phases

of the moon. The new moon, waning crescent, last quarter, waning gibbous, full moon, waxing

gibbous, first quarter and waxing crescent.

Titan

Titan is Saturns largest moon. It is the second largest moon in the solar

system. It is larger than Mercury and Pluto. Unlike Earth's moon, Titan has

an atmosphere. The air here is mostly made up of nitrogen. That is why it is kind

of orange there. The atmosphere here is so thick that spacecrafts have yet to break

through it. Spacecrafts are being created to break through this powerful layer of clouds

to reveal all of Titans features.

Milky Way Galaxy
The Milky Way is the galaxy in which our solar system lives. There is around 400

billion stars here