Six and three-year-old Ari and Aiden Gemer were surprised to find a Lego set of their father's robotic moon rover, MAPP, at Target. Their father, Andrew "AJ" Gemer, co-founder of Lunar Outpost, the company behind MAPP, shared the heartwarming moment. The Lego Technic Lunar Outpost® Moon Rover, a 1,082-piece kit, was released and celebrated at Space Center Houston's "Astronaut Days."

Prepared by Emily Rhodes and reviewed by editorial team.