NASA astronauts Chris Williams and Zena Cardman, both Expedition 74 Flight Engineers, work on spacesuit maintenance inside the International Space Station's Quest airlock on Dec. 16, 2025.
Credit: NASA
NASA astronaut Chris Williams will connect with students in Pennsylvania to answer prerecorded science, technology, engineering, and mathematics (STEM) questions while aboard the International Space Station.
The Earth-to-space call will begin at 12:20 p.m. EST Thursday, Feb. 5, and will stream live on the agency's Learn With NASA YouTube channel.
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