Last Updated: Tuesday, August 20, 2013, 22:51
A white-dwarf star has erupted in the constellation Delphinus and has produced a nova that is the brightest since 2007.
Last Updated: Tuesday, August 20, 2013, 22:36
MacRobert also notes that the comet was about two magnitudes fainter than predicted when it was last seen in late May before being hidden by the Sun.
more videos >>