The Big Bang
Black Holes
Nebulae
Star Clusters
Evolution of the Sun
100

The start of the Big Bang.

What is 13.8 billion years ago?

100

The fastest thing that cannot escape a black hole.

What is light?

100

The space between stars that is made up of gas and dust.

What is a nebula?

100

Groups of stars are held together with.

What is self-gravitation?

100

The age of our Sun.

What is 4.6 billion years old?

200

He created the theory of the Big Bang.

Who is Georges LemaƮtre?

200

The temperature of the inside of a black hole.

What is absolute zero (273.15 celsius)?

200

Another name for nebulae or the birthplace of a star.

What are "Star nurseries"?

200

The most known star cluster, also called the Seven Sisters.  

What is The Pleiades?

First observed by Galileo.

200

How much the Sun grows every 11 years. 

What is 2 kilometers?  The sun oscillates and grows larger and smaller each year, but as it burns it's gravity is less strong and the sun slowly gets larger.

300

The Big Bang Theory was created in this year.

What is 1931?

300

The length of one Earth year near a black hole.

What is 80 years?

300

A large explosion of a star when it reaches it's final stage.

What is a Supernova?

300

Two types of star clusters.

What are globular clusters and Open clusters?

Globular - tight groups hundreds of thousands of stars
Open Clusters - usually a dozen stars more loosely connected

300

More than 90 percent of the Sun's atoms are made of this gas. 

What is hydrogen? The rest are helium.

400

According to the Center for Astrophysics this is what the universe began as.

What is a small, dense point? Known as Singularity.

400

The place you usually find black holes.

What is the center of a galaxy? Or where stars may have collapsed?

400

The closest Nebula to Earth located in the Milky Way.

What is the Orion Nebula?  1500 light-years away.

400

This kind of star cluster has thousands to millions of stars together.

What is a globular cluster?

400

How the sun was created.

What is the collapse of a molecular cloud or solar nebula?

500

The first law in 1929 that proved the Big Bang could actually have been real.

What is Hubble's law? Which explains the constant expansion of the universe.

500

Hypothetically, if you were to go into a black hole, this is the name of the process that is used to shred you to pieces.

What is Spaghettification? First described by physicist Stephen Hawking.

500

The density of a nebulae.

What is 100,000 to 10 million molecules per cubic meter? And is approximately one light year across.

500

The average age for an open cluster.

What is 10 million years old?

500

The sun is this percentage dimmer now, than in the first 100 million years.

What is 30 percent dimmer?