In a little more than 24 hours from now, the world will know if India's most ambitious space mission to date has been successful or not. The Chandrayaan mission is at a critical stage and after 1 am early on Saturday, the Vikram lander with the Pragyaan probe onboard will commence its descent to the South Pole of the Moon. How is the world seeing this mission? Joining us now, a legend in the US space community, an astronaut who has spent more than 100 days in space on the Russian space station Mir, in addition to missions on the Space Shuttle - Jerry M Linenger.