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Keldura Daily · Science & Space

Science & Space: Space station work, wildfire monitoring, launch cadence, and lunar radio astronomy

This batch centers on active operations in orbit and on Earth: ISS crews are preparing for August spacewalks, ESA imagery is tracking major wildfire impacts in Spain and across Europe, SpaceX continues a rapid launch-and-test cycle, and a proposed African lunar science mission is moving toward hardware testing. NASA also opened community comment on a time-domain astrophysics white paper, indicating near-term planning for coordinated transient follow-up.

The field note

2 sources · 3 items
  1. NASA has scheduled three spacewalks in August to upgrade solar arrays, replace a communications antenna, and co…
  2. Meir and Menon will spend about six-and-a-half hours outside on the first spacewalk, which begins at 7:35 a.m.…
  3. The crew also tested spacesuit comfort, mobility, life support, and electronics in the Quest airlock ahead of t…
Story 011 source

ISS crew prepares for August spacewalks while routine science continues

NASA says the seven-member Expedition 75 crew spent Tuesday on spacesuit checks, eye exams, exercise research, Earth imagery, and lab inventory aboard the International Space Station [1]. Jessica Meir and Anil Menon are slated for the first of three August spacewalks, starting Aug. 6, to help upgrade solar arrays and support station operations [1].

Why it matters

The station is entering a maintenance-heavy period that combines operational upkeep with research, showing how human spaceflight depends on both scheduled EVAs and daily onboard science [1]. The work on solar arrays, antennas, and cables is directly tied to extending station capability and power margins [1].

Key insights

  • NASA has scheduled three spacewalks in August to upgrade solar arrays, replace a communications antenna, and connect power and data cables [1].
  • Meir and Menon will spend about six-and-a-half hours outside on the first spacewalk, which begins at 7:35 a.m. EDT on Aug. 6 [1].
  • The crew also tested spacesuit comfort, mobility, life support, and electronics in the Quest airlock ahead of the EVAs [1].
  • Ground doctors monitored an eye exam in real time to study how microgravity affects a crew member’s retina, lens, and cornea [1].
Story 022 sources

ESA satellite imagery shows wildfire smoke and active fire fronts over Spain and France

ESA published Copernicus imagery showing aerosol pollution over Spain and France after days of wildfire spread through dry countryside [2]. A second ESA image zooms in on the Cebreros ground station near Madrid and notes that more than 90,000 people were evacuated from the Ávila region, while Copernicus emergency mapping was activated to monitor the fires [8].

Why it matters

These images turn wildfire impacts into measurable atmospheric and infrastructure events, showing how space-based observation supports public health, emergency response, and mission operations on the ground [2][8]. The Cebreros update also shows that deep-space infrastructure can sit inside an active disaster zone yet still be assessed for safe operation [8].

Key insights

  • Sentinel-5P data on July 26 showed aerosol index over Spain and France after wildfire spread [2].
  • ESA says the aerosols came from three fire areas: Gironde near Bordeaux, the Ávila region, and north of Valencia [2].
  • ESA’s Cebreros station, 77 km west of Madrid, remained safe for nominal operations as of the morning of July 27 [8].
  • The Cebreros imagery highlights that Copernicus Emergency Mapping was activated on July 23 to support wildfire monitoring in central Spain [8].

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