The shocking math of our missing universe
Chapter 1

The cosmic skeleton key

Chapter 2

Spinning the cosmic web

Chapter 3

Weighing the invisible

Chapter 4

The ultimate cosmic detective hunt

YOUR GOAL

Master of Mapping the universe's invisible skeleton

Ch 1 · The cosmic skeleton key
007skaty

007skaty Astronomers calculate the total mass and energy of the cosmos.

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007skaty The Cosmic Skeleton Key

Skeleton key, skeleton key, / Bending starlight so we see!

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The forces that keep us from flying apart are often invisible.

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007skaty Astronomer Fritz Zwicky pioneered the search for the universe's missing mass.

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The shocking math of our missing universe

007skaty Regular matter accounts for just 5% of the cosmos, while dark matter makes up 27% and dark energy

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The starlight highway patrol that proved it

007skaty A clean 3D glass render maps Andromeda's outer stars along its invisible skeleton.

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Cosmic Skelly Key
BETA

007skaty Match cosmic skelly keys to gravity nodes to discover the universe's invisible skeleton.

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Fun Fact

Dark matter abundance: There is about five times more dark matter in the universe than all the regular matter combined.

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Gossip

Which cosmic mystery would you solve first?

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Quiz

If dark matter did not exist, what would happen to our Milky Way galaxy?

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007skaty Invisible dark matter holds the Milky Way galaxy together.

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Quiz

Why is dark matter called 'dark' by astronomers?

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Quiz

In physics, which of the four fundamental forces is dark matter known to definitely interact with?

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Quiz

What percentage of the entire universe (including dark energy) is made of regular matter like stars and planets?

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Quiz

How did astronomer Vera Rubin prove the existence of dark matter in the 1970s?

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Quiz

What percentage of the matter in the universe is estimated to be invisible dark matter?

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Quiz

Which galaxy did Vera Rubin primarily study to find the first clear evidence of flat rotation curves?

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Quiz

Which Swiss astronomer first coined the term 'dunkle Materie' (dark matter) in 1933?

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