NGC 7635 also known as the Bubble Nebula, an HII region situated in the constellation of Cassiopeia. The bubble has been created by a young hot massive star 8.7 magnetude SAO20575 at its centre. The Bubble Nebula is situated at 11,090 light years from Earth. So the next time you open a bottle of bubbly if you reside in the Northern Hemisphere look up towards the ‘W’ of Cassiopeia and raise your glass to the great bubble in the sky!