The Daily Broadcast: NASA, ESA Astronauts Prep ISS Antenna Spacewalk

The Daily Broadcast: NASA, ESA Astronauts Prep ISS Antenna Spacewalk

Menon and Adenot Exit Quest Airlock for Station Antenna Work

NASA astronaut Anil Menon and ESA astronaut Sophie Adenot are suiting up today for the 283rd spacewalk in support of International Space Station assembly, maintenance, and upgrades. The EVA is scheduled to begin at approximately 8:35 a.m. EDT and last about six and a half hours.

The pair will step outside the station’s Quest airlock to install a replacement Space-to-Ground antenna, a critical link enabling high-speed data transmission between NASA’s Mission Control Center in Houston and the orbital complex. During a 6-hour, 23-minute spacewalk on Aug. 18, Menon and Adenot removed the failed antenna and secured it to the station’s truss structure, but needed more time than expected to disconnect electrical cables and loosen bolts, delaying installation of the replacement.

Menon will serve as crew member 1 in the suit with red stripes; Adenot will serve as crew member 2 in an unmarked suit. This is Menon’s third spacewalk and Adenot’s second. The duo will also replace a retroreflector used for spacecraft docking on the Harmony module’s forward port.

The two completed final spacewalk preparations on Monday alongside fellow Expedition 75 crewmates, while the rest of the orbital residents studied the human respiratory system, activated Earth observation gear, and packed a cargo spacecraft prior to its departure.

Expedition 75 is Go for Tuesday Spacewalk to Install High-Speed AntennaESA astronaut Sophie Adenot is pictured inside the International Space Station’s Quest airlock with her helmet visor down as she… | Source: NASA

ESA’s Draco Reentry Mission Passes Critical Design Review

The European Space Agency’s Draco mission has passed its Critical Design Review, clearing the way for full-scale manufacturing, integration, and testing ahead of its planned 2027 launch. ESA announced the milestone on Aug. 17, confirming the review validated the design of all Draco systems.

The Destructive Reentry Assessment Container Object mission aims to gather data from inside a satellite as it breaks apart during atmospheric reentry, filling gaps in existing models used to predict spacecraft fragmentation and burn-up. The mission team will now proceed with flight hardware manufacturing followed by a testing campaign that includes high-altitude balloon drop tests.

ESA’s Draco reentry mission has passed its Critical Design Review, clearing the way for manufacturing and testing ahead of its 2027 launch. | Source: European Spaceflight

“Our mission passed its Critical Design Review in just a year after the last review, keeping the mission on its tight schedule,” ESA Draco project manager Stijn Lemmens said. Development is being led by Spain’s Indra Group, which assumed responsibility following its acquisition of Deimos Space in October 2024. ESA had awarded Deimos a €17 million contract for the mission the month before that acquisition.

Aerospace Corp. Demonstrates Pancake-Shaped DiskSats in Orbit

The Aerospace Corp. is continuing to demonstrate the viability of its pancake-shaped DiskSats following their December 2025 launch on a Rocket Lab Electron from NASA’s Wallops Flight Facility in Virginia. Four DiskSats were deployed from Aerospace’s custom-built dispenser to an altitude of 550 kilometres.

The 17-kilogram satellites, each with a 1-metre diameter and 2.5-centimetre depth, are descending about two kilometres per month due to atmospheric drag as engineers proceed with commissioning of Enpulsion Nano Field Emission Electric Propulsion systems. Those thrusters are needed to move the DiskSats to very low Earth orbit, defined as an altitude below 300 kilometres.

“It’s the biggest advancement in containerized satellites since cubesats were introduced in the early 2000s,” DiskSat demonstration mission chief engineer Darren Rowen told SpaceNews. The bus was constructed with carbon fiber composite facesheets bonded to an aluminum-honeycomb core, requiring engineers to redesign or modify power management, communications, attitude control, and thermal subsystems for the unusual form factor.

“Propulsive lowering and sustainment at lower altitude is coming next,” said DiskSat demonstration mission principal investigator Catherine Venturini. DiskSat mission team members presented their early-orbit lessons learned in a paper at the 2026 Small Satellite Conference.

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