Huge star

 Did you know that Sun is actually not the biggest thing in solar system  this is one of a name that it bigger than the sun R136a1 you should check it out  it way to massive, and have you heard about the Observable Universe ,we cant even see the sun comparing it like, so as the milky way. well not to long for the R136a1 will die in three million year I hope it wont damage earth, well after billions of year the sun will explode and it could be the end of the world. Do you know the Cat's Eye Nebula it Massive. How big is Sirius? They may contain the mass of one or two Suns but it 20 kilometre to 40. Many people believe that you could you actually live on Mars about 3 or 4 billion year ago well it had oxygen surface that had water but my something that is so cool from NASA they found oxygen on Mars surface.