a comedian is talking about sputnik
a group of people having a discussion
a group of scientist talking about space
a man is giving interview
a man is talking about going to the moon
a man speaks to an audience on stage
a man talking about something in front of others
a man talking about space
a man yelling about space
a person is anchoring
neil degrass tyson talking about sputnik
neile tyson degrasse talks about sputnik
people talking on the stage
popular scientists in a panel discussion
scientists are talking with each other
several famous people are talking on a stage to a live audience
some people are talking about sputnik at a convention
a group of people having a discussion
people talking on the stage
a man is talking about going to the moon