Login

Lost your password?
Don't have an account? Sign Up

Zooming Video Shows How Impressive the First Black Hole Photo Was


In 2019, researchers made international headlines by releasing the world’s first photo of a black hole. Here’s a 1-minute video that zooms from the night sky into that black hole image to show how impressive the achievement was.

“The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole,” writes the European Southern Observatory (ESO), which released the video. “This zoom video starts with a view of ALMA and zooms in on the heart of M87, showing successively more detailed observations and culminating in the first direct visual evidence of a supermassive black hole’s shadow.”

The video starts with a view of the night sky as seen from Earth. Still frame by ESO.
The video ends with the first photo ever shot of a black hole. Image by Event Horizon Telescope (EHT).

To capture the photo, scientists created an Earth-sized “computational telescope” that gathered data from 8 sites around the globe and used algorithms to extrapolate and fill in the missing pieces.

The black hole shadow seen in the first picture is about 40 microarcseconds wide. Shooting a picture of it is like trying to photograph a quarter in Los Angeles from Washington, DC or an orange on the moon from Earth.





Source link

https://avasta.ch

Leave a Comment

Your email address will not be published. Required fields are marked *

*
*