How Isro’s inflatable ‘barrel’ will help put Indians on Moon and Mars

It was the summer of ’69 when man touched down on the Moon. Six summers later, Nasa’s Viking 1 spacecraft landed on Mars. But 50 years on, no human has landed on the red planet, and probably won’t before 2040. Meanwhile, human-made objects like Voyager 1 and Voyager 2 have crossed into interstellar space.