Space Science

U sually when star like sun die means run out of fuel, will pull nearby asteroids and planets inward and crushed them and will create a disk of debris that surrounds the planet. But this is first planet that made the whole journey intact. NASA researchers announced last week that they have discovered a planet orbiting a white dwarf star and that is confirmed by NASA's satellite TESS ( Transiting Exoplanet Survey Satellite ) and Spitzer Space Telescope . Planet named WD 1856 b orbiting a small white dwarf star ( WD 1856 ) which is 80 light years away from Earth in Draco Constellation. The planet WD 1856 b, is a gas giant roughly the size of Jupiter and carry 14 time more mass from Jupiter. Star containing sun's half mass and size slightly larger than earth. According to NASA, it circles the star very closely and makes a complete orbit about every 34 hours. Vanderburg says in the NASA statement "WD 1856 b got very close to its white dwarf and managed to stay in one piece...

What is White Dwarf ? I n universe there are billion of star , every star lives because of nuclear fusion. Mostly fusion happens in core of star but sometimes that it also happened in place near core called shells.  If somewhere a star take birth so somewhere a star will be dead. Death of star depends on its mass. Star which have huge mass will be form as neutron star or black hole after death but which have less mass will be form as white ball who shines for trillion of years they are called  White Dwarf .  Death of Star: As star grow old fusion will happen in different areas of star and different materials formed in this process this is known as  Stellar Evolution  . But every star has its time , when it's gravitational force is not upto the level to continue nuclear fusion in star which causes to start of process of dying a star. Since there is no external force (as fusion stops) so star will shrink because of it's gravitational force but it shines as ma...