Discovering Sagittarius A*

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

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

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

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

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

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

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

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

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