The NASA International Internship Program (NASA I²) is a structured agency-wide program that provides a collaborative environment in which Non-U.S. interns (university undergraduate level students) or fellows (university graduate level students) are able to work alongside international peers. Following the signing of an agreement between NIHERST and NASA in 2012, the NASA I² program was developed to facilitate a structured educational exchange between NASA's science and engineering workforce and visiting university students from Trinidad and Tobago. NASA I² gives future workforce an opportunity to function as a member of a multinational team by partnering with international peers at a NASA facility. The visiting students will work side by side with US and other foreign interns under a NASA mentor.

The program is intensive with an emphasis on group work, teamwork, research and creativity. The content balances science and technology with issues of management, finance, and social and human issues faced by aerospace professionals. Students take part in seminars, informal discussions, evening lecture, supervised research, group projects and visits to NASA centres and laboratories.

Through NIHERST, Trinidad and Tobago was the first participating country with such an agreement; the second is now Mexico via its Agencia Espacial Mexicana (AEM).