On New Year's Day, India started a new mission to solve what is among the oldest mysteries of the universe - black holes. At 9.10 am, Indian Space Research Organisation (ISRO) launched the XPoSAT or X-ray Polarimeter Sat At 9.32 am, ISRO announced that the lift-off of the Polar Satellite Launch Vehicle (PSLV) was normal and XPoSAT was launched successfully. "PSLV-C58 vehicle placed the satellite precisely into the intended orbit of 650 km with 6-degree inclination. The POEM-3 is being scripted," ISRO posted in X. Soon after, ISRO chief S Somanath announced the successful launch. POEM refers to PSLV Orbital Experimental Module. Astrophysicist Dipankar Bhattacharya told  that today's launch was a "textbook launch". "The expected orbit has been achieved. Now all the expected science is hopefully going to work as planned," he said.Astrophysicist Dipankar Bhattacharya told  that today's launch was a "textbook launch". "The expected orbit has been achieved. Now all the expected science is hopefully going to work as planned," he said.The XPoSAT mission launch also marked the 60th flight of the Polar Satellite Launch Vehicle (PSLV). The 260-tonne rocket carries an advanced astronomy observatory meant  to study black holes and neutron stars. With this, India is set to become only the second country after the US to have an 'observatory' to study black holes.