Indian astronaut Shubhanshu Shukla, during his first call from space on Wednesday, called the experience “indescribable.” Greeting with a “namaskar” from space, Shukla said he is getting used to zero gravity. Indian astronaut Shubhanshu Shukla, during his first call from space on Wednesday, called the experience “indescribable.” Greeting with a “namaskar” from space, Shukla said he is getting used to zero gravity.