Musk's son 'X' joins him on video call about SpaceX's Starship; video viral

World's richest person Elon Musk's youngest son X Æ A-Xii, nicknamed 'X', joined him during a video call about SpaceX's Starship program during a talk organised by National Academies Space Studies Board. In a video, baby 'X' was seen sitting on Musk's lap. After a Twitter user quoted Musk as saying, "Mars needs babies", Musk responded, "It does need people".