Keldura Daily Open Keldura

Keldura Daily · Science & Space

Why Swift’s rescue mission is becoming a servicing rehearsal

An ongoing attitude-control issue affecting the commercial LINK spacecraft has forced NASA and Katalyst Space to cancel the planned capture and orbital boost of NASA’s Neil Gehrels Swift Observatory.[1] LINK will still attempt rendezvous and proximity operations near Swift, turning the flight into a demonstration of capabilities that could support future missions.[1] The astronauts removed the failed Space-To-Ground antenna 2, which had been unable to track the Tracking and Data Relay Satellite constellation since November 2025.[5] Stuck bolts and connectors delayed the work, so the crew secured the removed antenna to the station and deferred installation of its spare to a future spacewalk.[2][5] The system combines multi-year satellite-derived climate records with high-resolution demographic and census information and local knowledge.[4] It is designed to help authorities in Punjab and Sindh shift from reacting to dengue outbreaks toward targeting preventive action.[4] S301 reaches roughly 15,500 miles, or 25,000 kilometers, per second and completes its tightly elongated orbit around the Milky Way’s central black hole in 8.7 years.[6] At its closest, the star approaches to about 12 times the Earth-Sun distance, giving astronomers an unusually sensitive probe of the roughly 4.3-million-solar-mass Sagittarius A*.[6] GJ 523b has an estimated mass about 23.5 times Earth’s, a radius 2.55 times larger and an orbital period of 17.75 days.[7] Its high density suggests a predominantly rocky planet with relatively little atmosphere, even though planets with such massive cores are normally expected to collect substantial hydrogen and helium envelopes.[7]

The field note

2 sources · 2 items
  1. The antenna was secured with a long-duration tie-down on the International Space Station’s Z1 truss segment.[2]
  2. The spacewalk was Adenot’s first and the first conducted by a French woman.[5]
  3. After the spacewalk, crew research included blood tests, vein scans and blood-pressure measurements for the Ven…
Story 012 sources

How one failed antenna turned a spacewalk into a two-stage repair

The astronauts removed the failed Space-To-Ground antenna 2, which had been unable to track the Tracking and Data Relay Satellite constellation since November 2025.[5] Stuck bolts and connectors delayed the work, so the crew secured the removed antenna to the station and deferred installation of its spare to a future spacewalk.[2][5]

Why it matters

The repair illustrates how unexpected mechanical resistance can split an orbital-maintenance task across multiple spacewalks, while station research and life-support work must continue around the intervention.[2][5]

Key insights

  • The antenna was secured with a long-duration tie-down on the International Space Station’s Z1 truss segment.[2]
  • The spacewalk was Adenot’s first and the first conducted by a French woman.[5]
  • After the spacewalk, crew research included blood tests, vein scans and blood-pressure measurements for the Venus Flow investigation into space-related blood-flow risks.[2]

Create your own daily briefing — start free. Keldura monitors the sources you choose and gives you a private, grounded daily digest with cited answers.

Create your own daily briefing — start free