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  • Expedition 75 Cleans Up After Spacewalk, Keeps Up Microgravity Research

    From left, Expedition 75 flight engineers Anil Menon of NASA (partially obscured and wearing the spacesuit with a red stripe on the legs) and Sophie Adenot of ESA (European Space Agency) work together during a six‑hour and 23‑minute spacewalk outside the International Space Station. The duo disconnected a failed high‑speed antenna and secured it with a long‑duration tie‑down on the orbital outpost’s Z1 truss segment. A spare antenna will be installed on the Z1 truss during a future spacewalk.

    The Expedition 75 crew members cleaned up on Wednesday after a spacewalk that saw two astronauts uninstall an antenna outside the International Space Station. The lab residents also continued their microgravity research exploring the circulatory system, studying artificial intelligence, and photographing the Earth. Flight engineers Anil Menon of NASA and Sophie Adenot of ESA (European […]

  • NASA Study Reveals Hidden Stage of Arctic Freeze

    As autumn gives way to winter across the Arctic, the ground doesn’t immediately freeze solid. Instead, soils often linger near the freezing point for days or even weeks in a phase called the zero curtain. In a new NASA-led study, researchers produced high-resolution maps of the Arctic zero curtain. Understanding the duration, intensity and extent […]

  • NASA’s Starling Mission Opens New Frontiers in Space Navigation

    Illustrated image of four Starling satellites orbiting Earth.

    NASA’s Starling mission has marked another milestone in spacecraft autonomy by using a new system that determines a satellite’s position in orbit by referencing other objects in space, instead of relying on a navigational network.   The FALCON (Fast Autonomous Lost-in-space Catalog-based Optical Navigation) technology demonstration is a step toward spacecraft being able to operate more independently. As NASA prepares for more missions beyond Earth’s orbit, technologies like FALCON can support lunar satellite swarms, distributed science missions, and human exploration.   Traditional satellite navigation […]

  • NASA, ESA Astronauts Ready for Tuesday’s Antenna Swap Spacewalk

    The Expedition 75 crew has completed preparations and mission managers are go for a spacewalk to swap out a high-speed antenna outside the International Space Station on Tuesday. Meanwhile, there was still time on Monday’s research schedule for cardiac research, artificial intelligence tests, and Earth observations.

  • Week Ends Aboard Station With Robotics, Spacewalk Reviews, and Science

    Expedition 74 flight engineers Sophie Adenot of ESA (European Space Agency) and Jessica Meir of NASA work together inside the International Space Station’s Quest airlock. Adenot is wearing a spacesuit in a powered and pressurized configuration to test its mobility, comfort, and optimal fit. Meir also assisted Adenot in conducting suit leak and pressure checks while verifying the suit’s communications hardware and life‑support systems.

    Expedition 75 ended the week studying Canadarm2 robotic arm maneuvers and reviewing procedures for a spacewalk to support the removal and replacement of a space-to-ground antenna on Tuesday, Aug. 18. Science remained on Friday’s schedule as the International Space Station residents studied space exercise techniques, explored aerodynamic drag forces, and more.