The proposal period for In-Flight STEM Downlinks Expedition 75 is closed.

In-flight STEM Downlinks allow participants and facilitators to interact with astronauts onboard the International Space Station. These opportunities are available to both formal and informal U.S.-based organizations.

Please reach out to the Downlinks team at JSC-Downlinks@mail.nasa.gov with questions.

Upcoming Downlink Events

April 30, 2026
9:00 – 11:00 a.m. CT
University of Missouri Pre-Employment Transition Services Program
Columbia, Missouri
Astronauts Jessica Meir and Jack Hathaway
Watch on Learn with NASA’s Youtube channel

May 8, 2026
8:30 – 10:30 a.m. CT
Aurelia M. Cole Academy
Clermont, Florida
Astronaut Chris Williams
Watch on Learn with NASA’s Youtube channel

May 28, 2026
9:00 – 11:00 a.m. CT
Cradle of Aviation Museum
Garden City, New York
Astronaut Jessica Meir
Watch on Learn with NASA’s Youtube channel

June 18, 2026
10:00 a.m. – 12:00 p.m. CT
Newton Public Schools
Newton, New Jersey
Astronauts Chris Williams and Jessica Meir
Watch on Learn with NASA’s Youtube channel