Technnology and Astronomy Blog

  Black Hole   What Is a Black Hole?      (source from Google) A black hole is a region in space where the pulling force of gravity is so strong that light is not able to escape. This take place at the end of a star's life. Some black holes are a result of dying stars . As  no light can escape, black holes are invisible. However, space telescopes with special instruments can help find black holes. The boundary of the region from which no escape is possible is called the event horizon. In many ways, a black hole acts like an ideal black body  as it reflects no light. How Do Black Holes Form? Primordial Black holes are thought to have formed in the early universe, soon after the big bang. Black  holes form when the center of a very massive star collapses in upon itself. This  collapse also causes a supernova, or an exploding star, that blasts part of the star into  space. Scientists think super-massive black holes formed at the same time as the galaxy 

Chandrayaan-2 Developed by the Indian Space Research Organisation (ISRO), the mission was launched from the second launch pad at Satish Dhawan Space Centre on 22 July 2019 at 2.43 PM IST (09:13 UTC) to the Moon by a Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III).The planned orbit has a perigee of 170 km and an apogee of 45475 km. It consists of a lunar orbiter, a lander named Vikram and a lunar rover named Pragyan, all developed in India.The main scientific objective is to map the location and abundance of lunar water. The lander and the rover will land on the near side of the Moon, in the s outh polar region   at a latitude of about 70° south on 7 September 2019. The wheeled Pragyan  rover will move on the lunar surface and will perform on-site chemical analysis for a period of 14 days (one lunar day). It can relay data to Earth through the Chandrayaan-2 orbiter and lander, which were launched together on the same rocket. The orbiter will perform its mission fo