Learning about Space

Learning About Space

with Ishi Sehgal

Multiple Choice

How many moons does Saturn have?

• 62

• 64

• 47

• 82

Multiple Choice

How many moons does Jupiter have?

• 46

• 64

• 83

• 79

Multiple Choice

What is the Closest star to the Earth except The Sun?

• Betelgeuse

• Proxima Centauri

• UY Scuti

What is Space?

• Space is made of galaxies, stars, asteroids, planets and black holes.

• Space contains a lot of different types of matter.

• Let's learn about them one-by-one. : )

The Milky Way Galaxy

This is the name of our home galaxy, which the Earth is located in. Galaxies contain many objects such as stars and planets. Galaxies are mostly shaped like a spiral due to Gravity which allows planets to be contained in them.

The Andromeda Galaxy

This is another example of a galaxy. The Andromeda Galaxy is the closest neighboring galaxy to The Milky Way. It is located about 2.5 million light- years away. A light-year is a measure of distance that scientists usually use. A light- year is a measure of about 6 Trillion miles or 9 Trillion kilometers.

Multiple Choice

What is space not made of?

• Stars

• Galaxies

• Asteroids

• Satellites

Multiple Choice

What is the name of our home galaxy in which Earth is located in?

• The Andromeda Galaxy

• The Milky Way Galaxy

Multiple Choice

How many Kilometers is a light-year?

• Ten thousand Kilometers

• 9 Trillion Kilometers

Multiple Choice

What are light-years used for?

• They are a measure of time

• They are a measure of speed

• They are a measure of distance

Stars

Stars are huge balls of fire that give off heat and light. Stars are usually located in galaxies such as the Milky Way. An example of a star is The Sun. The Sun is the closest star to The Earth. Although The Sun is really big, there are other stars which are much bigger than The Sun. Some are even a Hundred times bigger!

Gravity from Stars

All objects give off Gravity. If there is a bigger object located near a smaller one, the bigger object would give off more Gravity. It's the same with stars. As stars are bigger than planets, almost every star in the universe has at least a few planets orbiting it. An example of such an orbiting system is the Solar System. It consists of The Sun, and other planets orbiting it such as Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Multiple Choice

All objects give off Gravity

• True

• False

Multiple Choice

What do stars not give off?

• Heat

• Light

• Fire

• Water

Planets

Planets are objects in space that are usually made up of rock and gas. Some can even be made up of asteroids. Examples of rock planets in the Solar System are Mercury, Venus, Earth and Mars. Some examples of Gas planets are Jupiter, Saturn, Uranus and Neptune. Due to their big size all the gas planets in the Solar System are called Gas Giants. Planets can be found orbiting stars such as The Sun.

Multiple Choice

Planets can be made of ice

• True

• False

Multiple Choice

Jupiter is a gas giant

• True

• False

Fun Facts about Space!

• The closest star to the Earth except The Sun is called Proxima Centauri.

• Jupiter has 79 moons!

• Saturn has 82 moons!

• Scientists believe that The Milky Way Galaxy and The Andromeda Galaxy will collide in about 4-5 Billion years!