A new image released by NASA and Jet Propulsion Laboratory shows a hot and supergiant star Kappa Cassiopeiae swiftly moving through space. The picture has been taken by the Spitzer Space Telescope, launched from Cape Canaveral in 2003.

The star, also known as HD 2905, which is travelling at 2.5 million miles an hour, is building a shock wave in front of its path. Experts said the speed at which the star is moving it can travel between Boston and Charlotte, North Carolina, in just one second.

The star is invisible from Earth if seen through naked eyes. But with a visual aid, the star can be seen in the constellation Cassiopeia. Experts have also seen the formation of a bow shock.

Explaining the phenomenon, experts said the gas is unable to move out of the way of the star on time. This has led the accumulation of the star in front of the star in a bow shock.

Bow shock is formed when tiny particle material trapped in the magnetic field of the star interact with the interstellar medium. It is not the first time when bow shock phenomenon has been observed. Such features have been observed in some of the fastest-moving stars in the galaxy.

Bow-shock lies four light years in front of the star. Assumptions are being made by some astronomers about the formation of bow shocks in this case. Some of them believe the magnetic field of the Milky Way is the reason behind these bow shocks.

If that is the case then astronomers will get a chance to see these invisible-lines of force.