Or imagine a cosmic ball of shaving foam (Picture: Getty/Metro) A pair of ‘super-puff planets’ lighter than a shaving foam or cotton candy have been discovered, researchers told Metro. TOI-791 b and TOI-791 c are exoplanets, planets outside our Solar System, 1,100 light-years away from Earth, or a 10billion-year-long drive away. Yet despite them being the size of Jupiter, neither is a celestial heavyweight – they’re what are genuinely called ‘super-puff’ planets. Jupiter has a density 28 times greater than TOI-791 c and 35 times greater than TOI-791b, according to a paper published in the Monthly Notices of the Royal Astronomical Society. No, they’re not made of pink candy floss, lead author Dr George Dransfield tells Metro. No, you can’t eat them, either. ‘They also have a similar density