ESO Time-Lapse Shows Stars Orbiting the Milky Way's Black Hole
European Southern Observatory (ESO) · 1 min · 2018 · YouTube title: Stars orbiting the black hole at the heart of the Milky Way
Why it's here
HN links it as direct observational evidence for a massive invisible object at the galactic center.
What it covers
A time-lapse from ESO's Very Large Telescope showing stars orbiting the supermassive black hole at the Milky Way's center over nearly 20 years.