Werner Brückner
Black Holes And Beyond
from Hypothethis to Detection
Front cover: Press Release 1332 of the "European
Southern Observatory" ESO from July 2013 © S.Gillessen (MPE). Headline: Fo "New observations from ESO’s Very Large Telescope show for the first time a gas cloud being ripped apart by the super-massive black hole at the centre of the galaxy. The cloud is now so stretched that its front part has passed the closest point and is travelling away from the black hole at more than 10 million km/h, whilst the tail is still falling towards it".
The photograph taken at widely separated time intervals, shows how the gas cloud has arrived at the black hole in the centre of the Milky Way. It is the first proof that black holes really do exist, but by its very nature, the black hole itself cannot be seen.