L is for Light Behind a Black Hole

This year's theme for my A-to-Z Blogging Challenge is Significant Events from 2021 and the first 3 months of 2022.

At the end of today's post is a teaser for tomorrow's M post.  Enjoy! 

On July 8, 2021, scientists made the first direct observation of light from behind a black hole, confirming Einstein's theory of general relativity.

Here's a view from the Hubble space telescope, entitled Hubble Uncovers Concentration of Small Black Holes

https://news.stanford.edu/2021/07/28/first-detection-light-behind-black-hole/

https://www.livescience.com/einstein-proven-right-black-hole

https://www.popsci.com/science/einstein-prediction-light-signals-behind-black-holes-confirmed/

https://www.cnn.com/2021/08/02/world/black-hole-light-einstein-scn/index.html

Here's a teaser for tomorrow's M post.  Remember, to avoid spoiling the answer for the next blog visitor, please comment on something related to the answer without giving the actual answer.