Hello friends, science and technology makes it possible today for humans to research and carry out analysis and investigation in various fields such as cosmology, physics, astronomy, chemistry etc. Space research and space exploration has been ultimate love for the scientists as it helps us to study stars, planets, the sun, galaxies, black holes, neutron stars etc. NASA and ESA (european space agency) are the leading agencies initiating interesting discovery along with other education university. Some of the objects in space arer so unbelievable, sci-fi and mysterious in real life that they deserve a dedicated video. Today we talk about these objects and also we study the behavior of time around the event horizon, using Albert Einsteins relativity. This video is almost like a space documentary so watch it till the end!