*Nebula*

**The correct plural for nebula is called         

Nebulae.**

The following pictures throughout the whole presentation are real and were taken by a NASA telescope.

     Nebula was known as to be open star clusters. Nebulae is a big cloud of gas filled with 90% of hydrogen, 10% helium, 0.1% heavy elements such as nitrogen, magnesium, potassium, calcium, and iron. The atoms in the clouds are energized by ultraviolet light from a nearby star. Nebulae forms when a heavy body of dust, gas, and other materials pass through it, which causes the mixture of new stars and functions. The materials and particles pass through when the gravity of space pulls them together and forms the nebulae. Nebulae gets it's beautiful colors from a nearby star, because of its reflection.

~TYPES OF NEBULAE~

1. Emission Nebulae~ cloud of high temperature gas

2. Reflection Nebulae~ differs from an emission, cloud of dust and gas that reflects the light energy from a nearby cluster of star(s). Both Emission Nebulae and Reflection Nebulae are known as Diffuse Nebulae.

3. Dark Nebulae~ cloud of dust that blocks the light from objects behind it.  

4. Planetary Nebulae~ a shell of gas produced by a star as it nears the end of its life cycle.

5. Supernova Remant~ created when a star ends its life in a massive explosion known as supernova  

6. Crab Nebulae~ cloud of intergalactic gasses and dust particles, and this nebula can be found in the constellation "Taurus". 

This is a picture of Taurus.

7.Cygnus Loop~ this is a type of Supernova.  

8. Ring Nebulae~ huge cloud of gas and dust shaped like a ring.

9. Horse Head Nebulae~ for some nebulae, they are formed in really cool shapes, like this horse head-shaped nebula.

 Some nebulae you can even see with the naked eye, but unfortunately the human eye is not sensitive enough to bring out the rich beautiful colors of it. Nebulae is able to keep its shape (for example, the horse head nebula) because of the gravitational squeeze and formation in space. Some nebulae can even last for millions of years. Most nebulae (any type) are dozens or even hundreds of light years across.

~DID YOU KNOW??~ Check this out!!All stars, planets, and solar

systems are formed in nebulae? Do you think we are formed

in nebulae?

     As gravity pulls more and more objects in, they could be

formed into many materials such as planets, stars, and other

 intergalactic objects. The particles in nebulae can cause some

planets to form! Nebulae is mostly formed by stars, because in order to make a star, the making of a nebulae must occur first. There are hundreds to thousands of stars in just ONE nebula. I know, its cool, right?

~HOW IT ALL STARTED~

      People believed that the following man of 1923, Edwin Hubble [bottom left] (who has his own telescope name) has discovered many nebulae, but he really only believed that the universe is expanding in its size. The first Planetary Nebula ever to be seen or discovered was by Dumbbell Nebula, which is where nebulae has gotten its original name from. The people who proved nebulae was Caroline [middle], Frederick, and son John Hershel [bottom left], a small family of three between the 18th and 19th century. Hubble researched the universe and galaxy during the time period of World War I.   Next to John Hershel is a picture of a Hubble telescope. Many nebulae was also discovered by this Hubble telescope.

~NEBULAE PICTURES~

Here are some pictures of nebulae. You

may take your time and admire the

beauty of all the different types of

nebulae.

Scientists and other people like to call this particular nebula "The Sombrero". Amazing right?  The  center (in front of the pink rings)  is actually filled with color, it is a light blue.  If there was no center, then the  rings would just be  a separate  nebula.

Scientists also like to call this nebula "The Eagle".  Did you know that some nebulae can keep its shape for thousands of years?

        ~EXTRAS~ 

Even though these nebulae are amazingly

beautiful, but they are HIGHLY toxic. 

Many astronomers are studying the differences of nebulae now, even when they contain the same particles and molecules.

Here are some other facts about nebulae.

• most of the colors in nebulae are made by the reflection of a nearby stars or the rays of stars inside the nebula
• the center of  most nebulae is where the formation had began
•   the center is also the brightest part of nebulae and contains the most particles and molecules

How well did YOU pay attention to this presentation?  

*How did the discovery or creation of this topic

CHANGE scientific thinking?*

    Well, it changed the thought of size of the universe

  and galaxies of man kind, and many more discoveries of nebulae

are to be made across the universe; eventually ready to be named

 into a scientific meaning. 

*How is the discovery/invention used today?

     It is shown for research and many astronomers study the

topic of nebulae. 

These amazing figures are outstanding to

some people. I hope you learned a lot that

you didn't already know about while

reading this presentation.

Highlight the following: Which one was your favorite? What have you learned? Presentation by Colleen O.