sam+and+theo

[|i got this from heare][|this is how the soler stiam was made.][|heare is a lot of QS anseered]

[|earth]

What is the moon?

the moon look,s similer to erth but it is darker than erth and thers no gravity and thers not alot of oxigen and it look,s like chees. and if you are on the moon and you look up it will look dark but if you look down it look,s litgh and it is made out of rock. and it has litale holes on the moon.

What is the sun? the sun is a big ball of fire that can set you on fire. if you look at the sun nonstop all day it can blinde you. and if you laye in the sun it can give you reley bad sun burn. the sun can give you therd dugre burn and give you skin canser. and it look,s like it,s going in srckls. The planets orbit the Sun due to its gravitational pull. Each of the planets have different orbits around the Sun. The further from the Sun a planet is, the longer it takes to orbit the Sun. The Sun is huge! In fact, the Sun makes up about 99% of the [|mass] in our system of planets.It takes the Earth 365 days to go around the Sun. This is why there are 365 days in a year. Can you guess how old our system of planets is? Well believe it or not, some scientists think that it`s over 4 billion years old! Our planetary system is part of a galaxy called the Milky Way. No, I'm not talking about the candy bar!
 * Did you know that our planetary system is shaped like an egg?**

What are black holes?
We can't see **black holes**. That's because the gravity of these objects is extremely powerful. So powerful in fact, that not even light can escape from it. Actually, anything that enters a black hole is trapped there and can never escape. Escape velocity is the term scientists use when they talk about the speed a rocket must travel at to break free from the Earth's gravitational pull and enter outer space. The same term also applies to other objects in space. Since we know that light can't escape from these objects, their escape velocity is greater than the speed of light.

How do we know where they are?
Scientists can detect these objects in outer space because they can see gas swirling around them at very high speeds. These swirling areas of gas cause hotspots in space. Areas of gas that are hotter than in normal conditions.

How many kinds are there?
There are 3 different kinds of these super-dense objects that we know about: Some [|astronomers] believe that these super massive objects are at the center of all normal galaxies.
 * stellar [|mass]: This object has the mass of a star. These objects have anywhere from 3 times the mass of our Sun to as much as 100 times the mass of our Sun. They are about the size of [|neutron stars]. These objects generally form from supernova explosions. They may also form in ways we don’t yet know of.
 * super massive: This object has a mass of hundreds of thousands to over a billion times the mass of our Sun. These objects are usually found at the center of [|galaxies]. Our own galaxy, the Milky Way, has one called "Sagittarius A star". Its mass is over 1 million times the mass of the Sun. our [|solar system] orbits around it about once every 226 million years.
 * intermediate: Scientists aren't exactly sure what these objects are. Some scientists believe they are early stage black holes that will continue gaining mass. They are about 500 to 1000 times the mass of the Sun i got this from heare