The moon mission Chandrayaan- 2 is scheduled to land on the lunar surface at 1:53 am on Saturday, as India looks to create history by becoming the first nation to reach closest to the moon's south pole. The moon lander Vikram that separated from its orbiting mothership has already performed two manoeuvres to lower its altitude for a perfect touchdown between 1:30 am and 2:30 am on Saturday. Talking to ETV Bharat, space expert Sneh Kesari threw light on the 'soft landing' of the spacecraft. He also explained why the last 15 minutes before landing are crucial for a successful mission.