If you could peer through a gravity lens, what would you want to find?
Chapter 1

The universe's invisible skeleton

Chapter 2

Reading the cosmic shadows

Chapter 3

Life inside the cosmic web

Chapter 4

The great hunt

YOUR GOAL

Master of How to weave a cosmic web

Ch 2 · Reading the cosmic shadows
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007skaty Distant galaxies and dark matter create the glowing circles of Einstein rings

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We understand the unseen by the way it shapes the visible.

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007skaty Cosmic gravity bends light traveling from distant galaxies

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The smoking gun of the Bullet Cluster

007skaty Friction slowed the crashing normal gas while dark matter sailed straight through, creating a clear separation between them.

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The glowing magic of Einstein rings

007skaty A bright ring of distorted starlight loops around a massive dark matter node.

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Cosmic Shadow Play
BETA

007skaty Trace bent starlight to map the invisible cosmic web of dark matter.

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Fun Fact

Cosmic magnifying glass: Gravitational lensing can magnify extremely distant galaxies by up to 30 times, acting as a natural telescope booster for astronomers.

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Glossary
gravitational lensing (noun)
The deflection of light from a distant source by the gravity of an intervening massive object. Between 2003 and 2008, researchers at a Hawaii telescope used this phenomenon to map dark matter.

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Gossip

If you could peer through a gravity lens, what would you want to find?

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Quiz

What shape is formed when a distant galaxy aligns perfectly behind a dark matter lens?

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007skaty The Bullet Cluster collision and the search for dark matter.

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Quiz

Which space telescope is actively mapping the dark universe using weak gravitational lensing?

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007skaty Stellar streams stretch across deep outer space.

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Quiz

What did the Bullet Cluster collision prove about dark matter?

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Quiz

Why did dark matter sail through the Bullet Cluster collision without slowing down?

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Quiz

Who first predicted that gravity could bend light, laying the groundwork for lensing?

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Quiz

What did astronomers discover outside the Milky Way for the first time in September 2026?

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Quiz

What is the phenomenon where gravity bends light around massive objects called?

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Quiz

How do stellar streams help astronomers study dark matter?

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