ARTi

The invisible universe

Chapter 1

The mystery of missing mass

View / Create

Answer

Chapter 2

Mapping the invisible

View / Create

Answer

Chapter 3

The runaway cosmos

View / Create

Answer

Chapter 4

The ultimate fate of the universe

View / Create

Answer

YOUR GOAL

Master of The invisible universe

Ch 1 · The mystery of missing mass
artiteacher
artiteacher

artiteacher Why gravity needs an invisible helper

Jul 12

artiteacher
artiteacher

artiteacher The Swiss astronomer who saw a cosmic ghost

Jul 12

artiteacher
artiteacher

artiteacher The glass ceiling shattered by spinning galaxies

Jul 12

artiteacher
artiteacher

artiteacher What dark matter is definitely not

Jul 12

artiteacher
artiteacher

artiteacher The mystery of missing mass

Five percent is all we see, the rest is hiding in the dark!

Jul 10

artiteacher
artiteacher
Why gravity needs an invisible helper

artiteacher Why gravity needs an invisible helper

Jul 10

artiteacher
artiteacher
Fun Fact

Dark matter abundance: Dark matter outweighs regular matter—the stuff making up stars, planets, and humans—by a ratio of five to one.

Jul 10

artiteacher
artiteacher
The glass ceiling shattered by spinning galaxies

artiteacher The glass ceiling shattered by spinning galaxies

Jul 10

artiteacher
artiteacher
Glossary
dark matter (noun)
A hypothetical form of matter that does not interact with light, detected only by its gravitational pull. In 1933, Fritz Zwicky first proposed this unseen material while studying the Coma galaxy cluster.

Jul 10

artiteacher
artiteacher
Quiz

Which fundamental force of nature does dark matter definitely interact with?

Jul 10

artiteacher
artiteacher
Gossip

Who is your favorite cosmic pioneer?

Jul 10

artiteacher
artiteacher
Quiz

Which Swiss astronomer first used the term 'dark matter' in 1933 while studying the Coma galaxy cluster?

Jul 10

artiteacher
artiteacher
Quiz

What would happen to spiral galaxies if dark matter did not exist to provide extra gravity?

Jul 10

artiteacher
artiteacher
Quiz

Which galaxy did Vera Rubin and Kent Ford study in detail to find the first robust evidence of dark matter?

Jul 10

artiteacher
artiteacher
Quiz

Why is dark matter called 'dark' by astrophysicists?

Jul 10

artiteacher
artiteacher
Quiz

What did astronomer Vera Rubin observe in the 1970s that proved the existence of dark matter?

Jul 10

artiteacher
artiteacher
Quiz

What is the term for the normal, visible matter made of protons and neutrons that dark matter is NOT made of?

Jul 10

artiteacher
artiteacher
Quiz

Approximately what percentage of all matter in the universe is made of dark matter?

Jul 10

artiteacher
artiteacher
Cosmic Hide and Seek

artiteacher Cosmic Hide and Seek

Jul 7