matthew+and+steven

1. What do you call an exploding [|star]? A **supernova** is a stellar explosion. They are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span. The explosion expels much or all of a star's material at a velocity of up to a tenth the speed of light, driving a shock wave into the surrounding interstellarmedium. This shock wave sweeps up an expanding shell of gas and dust called a supernova remnant.

Exploding star

2. What is a black hole? A black hole is a hole in space that has such a big gravintatinel pull that nothing can escape not even a light cant escape. A black hole is a hole in space that does not have any light. A [|black hole was created]by a gravitational collapse of a massiv star. If a black hole were to suck you up it would rip you to pieces. The reason it would rip you to pieces is because of how strong the gravitationly pull is.

Black Hole

media type="custom" key="3144256"

3. How many[|galaxies] are there?

Galaxy

4. What is a star?

A [|star] is mostly gas compressed to incredibie pressure by heat and by gravity (a very big collection of matter). Stars appear as tiny spots of light in the night sky.Exept for the sun, our own star, stars are extremeiy far away. Most stars that we see are fusing hdrogen into helium or fusing other elements by creating energy. The eye can only see about two thousand stars in the sky at one time. There seem to be an enormous number of stars that are visible to the naked-eye at a really dark site.



5. what is a astriod?


 * Asteroids is** sometimes called **[|minor planets]** or **planetoids**, are bodies—primarily of the inner [|Solar System]—that are way smaller than planets but larger than [|meteoroids], but exclude [|comets]. The distinction between asteroids and comets is made on visual appearance when discovered: Comets show a perceptible [|coma] while asteroids do not.



6. what is the solar system?

The **Solar System** consists of the Sun and those celestial objects bound to it by gravity. These bodies in space are the eight planets, their 166 known moons,dwarf planets, and billions of small bodies. The small bodies include asteroids, icy Kuiper belt objects, comets, meteoroids, and interplanetary dust. The charted regions of the Solar System are the Sun, four terrestrial inner planets, the asteroid belt, four gas giant outer planets, the Kuiper belt and the scattered disc. The hypothetical Oort cloud may also exist at a distance roughly a thousand times beyond the charted regions. A flow of plasma from the Sun (the solar wind) permeates the Solar System. This creates a bubble in the interstellar medium known as the heliosphere, which extends out to the middle of the scattered disc. In order of their distances from the Sun, the eight planets are: As of mid-2008, five smaller objects are classified as dwarf planets. Ceres is in the asteroid belt, and four orbit the Sun beyond Neptune: Pluto (formerly classified as the ninth planet), Haumea, Makemake, and Eris. Six of the planets and three of the dwarf planets are orbited by natural satellites, usually termed "moons" after Earth's Moon. Each of the outer planets is encircled by planetary rings of dust and other particles. 
 * 1) [|Mercury]
 * 2) [|Venus]
 * 3) [|Earth]
 * 4) [|Mars]
 * 5) [|Jupiter]
 * 6) [|Saturn]
 * 7) [|Uranus]
 * 8) [|Neptune]