AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new featuresNFL Sunday Ticketπ“π‘π«π’π―π’π§π π’πœπ‘π¨π₯𝐚𝐫𝐬: Nigerian-American Chinyere β€œChichi” Ukeje, 25, snagged NASA’s $300,000 prize by engineering a system to feed astronauts on Mars, no small f...