Uploaded August 2026 | Updated September 2026, 2 weeks ago
ESA astronaut Sophie Adenot will take part in her third spacewalk during U.S. Spacewalk 99 on Tuesday 1 September. NASA live coverage will begin at 13:00 CEST, with the spacewalk expected to start at approximately 14:30 CEST and last around six and a half hours.
Together with NASA astronaut Jessica Meir, she will replace a retroreflector on the International Space Station’s Harmony module, supporting spacecraft navigation during rendezvous and docking operations. The astronauts will also carry out several maintenance tasks, including installing data-relay system jumper cables, preparing the Alpha Magnetic Spectrometer’s radiator for future maintenance and replacing a high-definition camera on the station’s truss.
Credits: European Space Agency (ESA)
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We are Europe's gateway to space. Our mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.
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ESA astronaut Sophie Adenot will take part in her third spacewalk during U.S. Spacewalk 99 on Tuesday 1 September. NASA live coverage will begin at 13:00 CEST, with the spacewalk expected to start at approximately 14:30 CEST and last around six and a half hours.
Together with NASA astronaut Jessica Meir, she will replace a retroreflector on the International Space Station’s Harmony module, supporting spacecraft navigation during rendezvous and docking operations. The astronauts will also carry out several maintenance tasks, including installing data-relay system jumper cables, preparing the Alpha Magnetic Spectrometer’s radiator for future maintenance and replacing a high-definition camera on the station’s truss.
Credits: European Space Agency (ESA)
★ Subscribe: bit.ly/ESAsubscribe and click twice on the bell button to receive our notifications.
We are Europe's gateway to space. Our mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.
Copyright information about our videos is available here: https://www.esa.int/ESA_Multimedia/Terms_and_Conditions
![How astronauts weigh themselves in space ⚖️ (Part 2) [French with English subtitles]](https://i.ytimg.com/vi/gThIxuOiAtU/mqdefault.jpg "How astronauts weigh themselves in space ⚖️ (Part 2) [French with English subtitles]
Our astronaut Sophie Adenot shared this video on her social media channels with the caption:
[EN] Day 057, orbit 0896 – Sunday morning science with Sophie, episode 3: Weighing yourself in weightlessness, part 2 ⚖️.
The device used in this video to measure mass is called the Mass Measurement Device (MMD) or Измеритель Масс (ИМ) in Russian!
[FR] Jour 057, orbite 0896 – La science du dimanche matin avec Sophie, épisode 3 : se peser en micropesanteur, partie 2 ⚖️.
L’appareil utilisé dans cette vidéo pour mesurer la masse s’appelle le MMD (Mass Measurement Device) ou Измеритель Масс (ИМ) en russe.
📹 ESA/NASA
#ESA #Astronaut #ISS")
![Water and convex lenses 💧 [French with English subtitles]](https://i.ytimg.com/vi/hKm4uYatEGY/mqdefault.jpg "Water and convex lenses 💧 [French with English subtitles]
Our astronaut Sophie Adenot shared this video on her social media channels with the caption:
[EN] Day 072, orbit 1113 — Sunday morning science with Sophie, episode 5: Water and convex lenses.
[FR] Jour 072, orbite 1113 – La science du dimanche matin avec Sophie, épisode 5 : Eau et lentilles convexes.
📹 ESA/NASA
#ESA #Astronaut #ISS")
