Three Expedition 74 crew members are packing up cargo and handing over their responsibilities with less than one week to go before returning to Earth. The International Space Station’s three newest crewmates are already in the second week of their mission getting used to life on orbit and researching how microgravity affects the human body.
Expedition 74 Turns Attention to Departing Crewmates











![An educational diagram illustrating how measurement uncertainty can distort data regarding Earth's magnetosphere, featuring a detailed space visualization alongside two comparative line graphs. Top Right: Earth is shown surrounded by a complex network of blue magnetic field lines.Far Right: A bright blue, curved line denotes the "Bow shock," which transitions into an orange-red turbulent region labeled the "Magnetosheath." Spacecraft Locations: The "WIND" spacecraft is positioned far to the left in the "Solar wind" stream, connected to a label reading "Measured solar wind strength." The "THEMIS" spacecraft sits closer to Earth inside the magnetosheath, labeled "Corrected solar wind strength. Left Graph: Plots "Earth's response [mV/m]" against "Measured solar wind strength [mV/m]." A blue line initially follows a linear path but then flattens out, marked with the text "illusion of saturation due to measurement uncertainty."Right Graph: Plots "Earth's response [mV/m]" against "Corrected solar wind strength [mV/m]." A pink line continues steadily upward diagonally, labeled as the "True linear response."](https://science.nasa.gov/wp-content/uploads/2026/07/sivadas-2026-explanation-figure-v5-1.jpg?w=900)