What is it?
Timeline
How can we tell?
Who helped create/add to this theory?
Extra
100

What do you call the biggest explosion that created our universe?

What is the Big Bang.

100

The first 10-43 seconds of our universe. During this era, it was tiny, hot, gaseous, and pact with very high energy particles.

What is the Planck Era?

100

What is the visual result caused by the escaping of photons during the early stages of our universe as it began to cool down?

What is Cosmic Background Radiation

100

Who is the person who created the general theory of relativity and other theories about fundamental particles? This math was used to support the Big Bang Thoery.

Who is Albert Einstein?

100

What are some of the biggest questions astronomers ask today about the expansion of our universe?

Will our universe stop expanding one day? Will our universe begin to turn around? Will our universe collapse?

200

How many points did the universe begin from?

What is only a single point? (trick question)

200

The first 10-38 to 10-35 seconds of our universe. During this time the observable universe expanded to about 1035 times its previous size, which was about the size of a single electron.

What is the Inflation period?

200

What is something we can use as evidence for the Big Bang? This evidence has been occurring since the Big Bang occured but is progressively decreasing in speed as time goes by.

What is the universe's expansion?

200

Who said that the universe started from a single point and that it could expand forever?

Who is Georges Lemaitre?

200

What is an unanswered question about the inflation of the universe?

What powered it?

300

What did the universe look like in the beginning?

The universe was incredibly small compared to now and it was very hot and dense.

300

This era lasted for 10-38 to 10-10 seconds. During this era, the only particles that existed were Higgs, W, and Z bosons. These particles could collide with each other.

What is the Electroweak Era?

300

Which probe was used to measure the size of our universe and study the properties of our universe?

What is the Wilkinson Microwave Anisotropy Probe (WMAP)?

300

Who noticed that the galaxies around us were moving away from us and that the galaxies further away from us were moving faster than others? (Hint: A famous telescope was named after him)

Who is Edwin Hubble?

300

How come we can not observe certain things from earlier events of our universe?

During these events, there were no photons so they could not be seen.
400

How many years ago did the Big Bang occur?

What is about 13.8 billion years ago?

400

Occurred during the 10-3 to 3 minutes of the existence of our universe. Although the universe had cooled down a little by this point it was still hot and dense enough to begin fusing hydrogen. A smaller amount of heavier elements also came into existence during this era.

What is the Nucleosynthesis Era?

400

What ground-based observatory was specifically used to map the cosmic background radiation from the Big Bang and has more accurate up to date info?

What is ESO's Planck observatory? (European Southern Observatory)

400

Who proposed the idea of inflation during 1979?

Who is Alan Guth?

400

What type of matter increases the speed of our universe's expansion when our universe should be decreasing in speed because of the increase of regular matter? There are many things we do not understand about this particular matter.

Dark Matter

500

How big is our universe currently?

No one knows! Our universe could be infinitely large! This also might not be the only universe that exists!

500

This occurred 20 mins to 380,000 years of our universe's existence. During the first 3 to 70,000 years of this era, the universe continued to cool and more matter was created. Once the universe hit 310,000 years old electrons began to get captured by ions forming atoms. Light begins to travel across the universe making it transparent.

What is the Nuclei Era?

500

What telescope, that is very famous, is also used to continue measuring the expansion of the universe?

What is the Hubble Telescope?