The proposal period for In-Flight STEM Downlinks Expedition 74 is
Monday, March 17, 2025, to Tuesday, April 29, 2025.

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

Expedition 74 In-Flight STEM Downlinks will tentatively occur between Sept. 2025 – March 2026.

To Apply for an In-Flight STEM Downlink visit Apply for a Downlink – NASA.

Upcoming Downlink Events

The following information is subject to change.

April 11, 2025
12:00 p.m. – 12:20 p.m. Central Time (Tentative)
Academy at the Farm
Dade City, Florida
Astronaut Nichole Ayers
Watch on NASA+

April 21, 2025
Woodland Park High School
Woodland Park, Colorado
Astronaut Nichole Ayers
Watch on NASA+

April 29, 2025
Santa Monica High School
Santa Monica, California
Astronaut Jonny Kim
Watch on NASA+

May 5, 2025
Mansfield ISD STEM Academies
Mansfield, Texas
Watch on NASA+

May 7, 2025
Gilmore Elementary School
League City, Texas
Astronaut Jonny Kim
Watch on NASA+

May 23, 2025
Vermilion High School
Vermilion, Ohio
Astronaut Anne McClain
Watch on NASA+

May 27, 2025
Mobius Discovery Center
Spokane, Washington
Astronaut Anne McClain
Watch on NASA+

June 9, 2025
New Explorations into Science, Technology and Math High School
Manhattan, New York
Watch on NASA+