questionedithistorytranslationsCurrent version This is the accepted version. added by globalquiz.org Feb. 1, 2015, 9:17 a.m. What is the densest substance in the universe? osmiumdiamondcore of the Sunneutron starA neutron star is a stellar remnant of a supernova. Neutron stars are very small, but extremely dense - with a radius of only about 12–13 km (7 mi), they can have a mass of about two Suns.globalquiz.orgShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this questionwikipedia → Neutron star6Very interesting! wikipedia → Neutron starreach: rather globalastronomychemistryphysicsstarsVotes +1 Very interesting! Hardik Singh Cheema +5 Very interesting! globalquiz.org