The glowing orange donut of gas

Discovering Sagittarius A*

Chapter 1

The invisible anchor at the center

Chapter 2

Taking the first picture of a monster

Chapter 3

Extreme physics in the danger zone

Chapter 4

The past and future of our black hole

YOUR GOAL

Master of Discovering Sagittarius A*

Ch 2 · Taking the first picture of a monster
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artiteacher Sagittarius A* Black Hole

Sgr A* revealed, Sgr A* revealed! Our galaxy's heart, now truly seen.

Jul 12

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artiteacher Solving the ultimate global data puzzle

Jul 12

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Solving the ultimate global data puzzle

artiteacher Processing the petabytes of data from the telescope network required shipping physical hard drives across the globe.

Jul 10

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The glowing orange donut of gas

artiteacher The historic 2022 image of Sagittarius A* shows a dark shadow surrounded by glowing, superheated gas.

Jul 10

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Snap the Monster
BETA

artiteacher Snap the orbiting stars to discover how our galaxy's central black hole warps space.

Jul 10

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Fun Fact

Data transit: The Event Horizon Telescope collected so much data that shipping physical hard drives by airplane was faster than using the internet.

Jul 10

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Gossip

What did the first image of Sagittarius A* look like?

Jul 10

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Quiz

In what year was the first image of Sagittarius A* released to the public?

Jul 10

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artiteacher The glowing orange donut of gas

Jul 12

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Quiz

What technique combines multiple radio telescopes to act as one giant dish?

Jul 10

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artiteacher Building an Earth-sized virtual camera

Jul 12

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Quiz

How did scientists transport the massive data collected by the Event Horizon Telescope?

Jul 10

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artiteacher A tale of two black holes

Jul 12

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Quiz

What color is the glowing ring of gas in the famous image of Sagittarius A*?

Jul 10

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Quiz

Which telescope location delayed data processing due to extreme winter weather?

Jul 10

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Quiz

Why can't we directly see the black hole itself in the EHT image?

Jul 10

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Quiz

What is the name of the global telescope network that imaged Sagittarius A*?

Jul 10

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Quiz

Why was Sagittarius A* harder to image than the larger M87* black hole?

Jul 10