BENGALURU: Three days after Sunrise on Moon, Isro has heard nothing from Chandrayaan-3 lander (Vikram) and rover (Pragyan) even as hopes of them getting a second innings on the lunar surface continue to be harboured.Isro chairman S Somanath told STOI: “Till now there has been no signal, but I cannot say it will not come up. We can wait the entire lunar day (14 Earth days) as there will be continuous sunlight throughout that period, which means temperature will only go up.As long as the temperature is increasing...