Norway (1st) Denmark (2nd), Sweden (3rd) Estonia (4th) and Finland (5th) grabbed the top positions, while North Korea remained at the bottom of the list of the 180 countries and territories.
The Ministry of Culture, India entered the Guinness Book of World Records by waving 78,220 flags simultaneously at the 'Veer Kunwar Singh Vijayotsav' event in Bhojpur, Bihar.
Chinese scientists have proposed a space project to survey the sky through a space-borne telescope to hunt for habitable Earth-like planets outside the Solar System, some 32 light-years away from Earth.