article_snippet: A star that is travelling fast enough to escape the gravitational clutches of the galaxy has been discovered by a team of astronomers.
article_snippet: The amazing stellar object attained its rapid speed when a nearby star exploded as a supernova, sending The amazing stellar object out of the Milky Way.
article_snippet: Astronomers in Hawaii have found the fastest 'unbound' star in the galaxythe galaxy.
article_snippet: However, a team of astronomers led by the University of Hawaii at Manoa has now re-examined a nearby star, and found that it breaks the galactic speed record for an 'unbound' star.
article_snippet: Using the 10-metre Keck II and Pan-Starrs1 telescopes in Hawaii, the astronomers calculated that A star at least nine times the mass of the sun is moving at about 745 miles (1,200km) per second.
article_snippet: This makes A star at least nine times the mass of the sun the fastest ‘rogue’ star in the galaxy - one that is no longer orbiting the centre.
article_snippet: By observing the sky repeatedly over several years, the Pan-Starrs1 survey, let us make a movie of the motions of the stars in the sky.
article_snippet: Stars like the sun are bound to our galaxy by the sun gravity, and orbit the sun centre at relatively moderate velocities, typically tens to a few hundreds of kilometres per second.
article_snippet: Only so-called hyperveolocity stars are known to travel so fast that Only so-called hyperveolocity stars are unbound to our galaxy.
highlights_snippet: Astronomers in Hawaii have found the fastest 'unbound' star in the galaxy .
  
highlights_snippet: the fastest 'unbound' star in the galaxy was given the fastest 'unbound' star in the galaxy rapid speed due to the fastest 'unbound' star in the galaxy companion going supernova .
  