Insight

                A blue Supergiant star(artist's view).                                                                                                       Astronomers study the nature of Blue Supergiant Stars for decades. Blue Supergiants are difficult to study because they have a short lifetime as they die young. Stars temperature are determine by their colour - Blue Supergiants are hottest while Red stars are the coolest. Blue Supergiants have a surface temperature between 20,000℃ to 50,000℃.                                                                                           Blue Supergiants are the final burning phase before the death of a super massive star in Supernovae. Research are limited on these giants due to unavailable technology and equipments because telescopes can't see the interior of stars.             The illustration in this video shows the waves generated in the interior of a star.                                                            

                      A artist's impression on Dragonfly probe.                                                                                                                                                                           A week ago, American space agency NASA announced it's next destination in solar system. NASA planning a mission to Saturn's moon, Titan in search of Alien life, they named this project as 'Dragonfly'. Dragonfly was selected as part of agency's new frontiers program, which includes the New Horizons mission to Pluto and the kuiper Belt, Juno to Jupiter and OSIRIS REX to the asteroid Bennu.                                    Dragonfly is the first multi rotor vehicle for science on another planet, it contains eight rotors. It is dual quardcopter lander ( a Mars rover-size, drone like vehicle) that will explore the prebiotic Organic Chemistry of Titan, the biggest of Saturn's 62 moons.                                          

                      A rotating neuron star also known as pulsar( artists view).                                                                                                                                                       A celestial object of very small radius, typically 30Km and very high density, compound predominantly of closed packed neutrons. When any star of mass nearly 10-29 Solar masses start to collapse at the end of their life, in supernova they flushes out all the electrons , protons, neutrinos and many other particles, they remained only with neutrons yielding the name Neutron star. Neutron stars are the smallest and densest stars not counting Black holes , Quark stars , hypothetical White holes and strange stars . They are formed only by those stars whose masses is insufficient to produce a Black hole.                               A neutron star captured by high resolution telescope.                                                                        

Black holes are regions of space where gravity is extreme enough to prevent the escape of even photons( fastest moving particles in universe) . We can't able to see them directly because they don't emit anything except Hawking radiation(not confirmed ,under research) .                                                                                       Recently , scientists find a monster Black hole whose mass is 700 trillion solar masses and it is as luminous as 10,000 Suns . Now,you have a question in your mind how Black hole can shine? In reality, Black hole doesn't shine but it is the disc of gases which revolve around the Black hole and due to friction and high speed rotation it's temperature rises and make Black hole horizon shine.                                                                                       According to the prediction of many scientists a super massive black hole "Sigitarrius A*" is present at the centre of our milky way galax