Astronomers have just discovered a fifth planet. What you thought there were already 8 planets? No they didn't demote Mercury, Venus and Mars. But a fifth planet was discovered orbiting 55 Cancir A . It is a yellow dwarf much like our sun about 41 light years away. The fifth planet that was discovered is this system. It is another big one, roughly halfway between Neptune and Saturn in size. More interestingly orbit puts it in the "goldilocks" zone where liquid water can exist. Given its size it... read more
