1. Mercury
   Venus
2. Mars
   Jupiter

Mercury has an orbital period of 88 days and is located about 36 million miles from the Sun. It also orbits at a speed of 112,000 miles per hour.

1. Debris
   Sun
2. Asteroids
   Comets

Asteroids are also known as "planetoids," depending on the size. Ceres is one of the most well-known asteroids.

1. Uranus
   Jupiter
2. Venus
   Neptune

This planet is the second-shortest to the Sun (in terms of distance), which is exactly 67.24 million miles. It's also one of the brightest planets in the sky (from Earth).

1. Comet
   Planetary nebula
2. Asteroid
   Meteoroid

Dying stars emit a type of gas that helps to make up the matter of these types of nebulae. These often look red and blue in color.

1. Jupiter
   Mars
2. Neptune
   Uranus

Mars takes 687 days to orbit the sun, and is located 141.6 million miles away from the Sun. Its moons are Phobos and Deimos.

1. Jupiter
   Mercury
2. Venus
   Earth

Earth is the only planet inhabited by humans and animals, and is mostly made up of water. It's also 92.96 million miles from the Sun.

1. Milky Way Galaxy
   Tadpole Galaxy
2. Moon
   Cosmos Redshift 7

The Cosmos Redshift 7 resides in the Sextans constellation, and is considered to be one of the oldest galaxies known to man. This galaxy is located 12.9 billion light years from Earth.

1. Jupiter
   Mars
2. Mercury
   Earth

Jupiter's moons are Europa, Ganymede, Io, Callisto and Megaclite. It also has an orbital period of 12 years, and is 483.8 million miles from the Sun.

1. Mars
   Earth
2. Neptune
   Mercury

Neptune is very far from the Sun, with an approximate distance of 2.793 billion miles. Some of its moons are Psamathe, Naiad and Neso.

1. Black Eye Galaxy
   Milky Way Galaxy
2. Sombrero Galaxy
   Andromeda Galaxy

The Sombrero Galaxy actually looks like the popular hat, the Sombrero. This is also a type of spiral galaxy and is located 29.35 million light years from Earth.

1. Mars
   Neptune
2. Uranus
   Saturn

Uranus orbits on its side at an approximate 98 degrees. It also takes 84 years to complete one full orbit.

1. Pluto
   Mercury
2. Mars
   Saturn

Saturn has a very large radius of 36,184 miles, which is nine times bigger than Earth. The days on Saturn are also almost half of those on Earth, at about 10 hours and 34 minutes.

1. Uranus
   Jupiter
2. Pluto
   Earth

Pluto features five moons and is considered to be a dwarf planet in size. It also has an orbital period of 248 years.

1. Earth
   Mercury
2. Pluto
   Sun

When you look up at the sky during the day, you'll see the Sun (but don't directly stare at it)! The sun is also made up of hot plasma, with a surface temperature of 5,778 K.

1. Moon
   Pluto
2. Asteroid
   Comet

Neil Armstrong landed on the Moon, as well as other astronauts like Charles Duke and Alan Bean. The moon takes 27 days to orbit the Earth.

1. Comet
   Satellite
2. Moon
   Sun

You might have heard of Halley's Comet, which can only be seen about every 75 years. Comets also move through the sky very quickly, releasing gasses along the way.

1. Meteoroids
   Asteroids
2. Galaxies
   Nebulae

Meteoroids are like mini-versions of asteroids, and can travel at speeds of up to 42 km/h. Asteroid belts are also responsible for producing some types of meteoroids.

1. Moon
   Emission nebula
2. Open cluster
   Galaxy

The Emission nebula emits a radiant red color due to excess amounts of hydrogen. Ionized gas is also responsible for forming this kind of nebula.

1. Galaxy
   Satellite
2. Horsehead nebula
   Globular cluster

M13 is a popular and well-known globular cluster in our universe. Globular clusters also orbit objects like a satellite would.

1. Open clusters
   Messier 81
2. Pinwheel Galaxy
   Triangulum Galaxy

Open clusters consist of thousands of stars that are "clumped" together. These types of clusters can also be found in spiral galaxies.

1. Moon
   Reflection nebula
2. Open cluster
   Globular cluster

The Reflection nebula emits a pretty blue color, which is reflected from stars that are near it. This results in a polarizing effect.

1. Planetary nebula
   Emission nebula
2. Dark nebula
   Sun

You probably won't be able to see much light behind a dark nebula, which is very dense in nature. This is also an irregular type of nebula.

1. Supernova remnant
   Dark nebula
2. Galaxy
   Open cluster

These colorful celestial bodies are actually the remnants of an exploding star. This is also known as the Crab nebula.

1. Comet
   Asteroid
2. Meteoroid
   Veil Nebula

The Veil Nebula is quite large in size, spanning at about 50 light years in radius! One light year equals to 5.8786×10^12 miles.

1. Carina Nebula
   Orion Nebula
2. Eagle Nebula
   Lagoon Nebula

The Orion Nebula can actually be seen by the human eye! It's also one of the brightest types of nebulae to exist.

1. Whirlpool Galaxy
   Andromeda Galaxy
2. Milky Way Galaxy
   Horsehead Nebula

This is the first type of galaxy to be referred to as a spiral galaxy, and resides in the Canes Venatici constellation. Other nicknames for this galaxy are M51a and NGC 5194.

1. Moon
   Sun
2. Horsehead Nebula
   Ring Nebula

The Ring Nebula is exactly 2,283 light years from Earth and is shaped like a colorful ring. This nebula is also located in the Lyra constellation.

1. Comet
   Messier 81
2. Asteroid
   Sombrero Galaxy

This spiral galaxy actually has 250 billion stars and is located in the Ursa Major constellation. It has a magnitude of 6.94.

1. Triangulum Galaxy
   Large Magellanic Cloud
2. Andromeda Galaxy
   Messier 82

This bright galaxy is located 11.42 million light years from Earth and is considered to be a starburst galaxy. It has a radius spanning 18,500 light years.

1. Black Eye Galaxy
   Moon
2. Sun
   Venus

The Black Eye Galaxy became official in 1779 and it was named by Edward Pigott. This type of galaxy is also 13.28 billion years old!

1. Jupiter
   Small Magellanic Cloud
2. Pluto
   Asteroid Belt

Also known as the Nubecula Minor, this type of galaxy is about 200,000 light years away from Earth. It also belongs to both the Hydrus and the Tucana constellations.

1. Sun
   Moon
2. Sagittarius Dwarf Spheroidal Galaxy
   Pluto

The Sagittarius Dwarf Spheroidal Galaxy is made up of many aged stars. It resides in the Milky Way Galaxy.

1. Open cluster
   Horsehead Nebula
2. Virgo Stellar Stream
   Andromeda Galaxy

This doesn't refer to the type of water-based streams that are located on Earth. Rather, these stellar streams are formed from dwarf spheroidal galaxies.

1. M51a
   Milky Way Galaxy
2. Andromeda Galaxy
   Tadpole Galaxy

The Tadpole Galaxy features a unique tadpole shape and is located 400 million light years from Earth. This galaxy spans a radius of 195,000 light years.

1. Arp 273
   M51a
2. Hoag's Object
   Eagle Nebula

Hoag's Object was made official in 1950 by Arthur Hoag. It contains 8 billion stars.

1. Arp 273
   Eagle Nebula
2. Sombrero Galaxy
   Helix Nebula

Within the Andromeda Galaxy lies the Arp 273, which looks like a loose spiral of other galaxies. It's located 300 million light years from Earth.

1. Ghost Nebula
   Carina Nebula
2. Horsehead Nebula
   NGC 6357

Located in the Scorpius constellation lies the NGC 6357, which also bears the nickname "Lobster Nebula." It's made up of both young stars and protostars.

1. Meteor
   Cat's Eye Nebula
2. Horsehead Nebula
   Asteroid Belt

The Cat's Eye Nebula features a distinct eye-shaped feature, which is bright and colorful in nature. This is located in the Draco constellation.

1. Andromeda Galaxy
   Milky Way Galaxy
2. NGC 6302
   Comet

The NGC 6302 has a radius of 1.5 light years and features the nickname "Butterfly Nebula." This nebula also lives in the Scorpius constellation.

1. Sun
   Jupiter
2. Andromeda Galaxy
   Moon

The spiral galaxy known as Andromeda is well-known for its ample amount of stars. It is located 2.537 million light years from Earth.