NASA Considered ISS Evacuation Amid Russia’s Hull Repair Plans

On June 5, NASA instructed its Crew-12 astronauts to prepare for an evacuation from the International Space Station (ISS) due to a longstanding air leak on the Russian side. After several tense hours, NASA declared the situation safe. The incident revealed that the issue stemmed not merely from the leak, but from Russian cosmonauts attempting to fix it using a drill and a saw in space.

Reports indicate that earlier in the year, Russian engineers had used sealant to address the leaks. These leaks, located in the PrK transfer tunnel connected to the Zvezda module, had allowed air to escape for years, losing between 2 to 4 pounds daily. In severe cases, the leaks could have caused an explosion that would threaten the entire station. Fortunately, the sealant had put a temporary stop to the problem.

However, new leaks reappeared in May. On June 4, the Russian space agency, Roscosmos, communicated to NASA their intention to drill into the station’s hull to tackle the leaks.

NASA did not support this approach. After urging Roscosmos to reconsider, they warned that an evacuation alarm would be triggered if the drilling proceeded. This ultimatum caused the cosmonauts to stand down, although they soon returned with a saw, intending to cut through a structural bracket. This prompted NASA to order an evacuation into the Dragon capsule.

As a result of this international incident, Russia has chosen to decommission the PrK tunnel. It will no longer be pressurized, thus eliminating the risk of explosion. The future of the ISS remains uncertain, with plans to extend its operation, but concerns linger about the safety of further repairs.

How much do you know?

What prompted NASA to declare the situation safe on June 5?

Successful repairs to the leak

Evacuation preparation being completed

Return of the astronauts to Earth

Resolution of communication with Roscosmos

Which part of the ISS was involved in the leaks?

The Zvezda module

The PrK transfer tunnel

The Dragon capsule

The Harmony module

What did Russian engineers use earlier in the year to address the leaks?

Plugs

Sealant

Welding

Tape

When did new leaks reappear?

April 4

May

June 1

March

What did NASA warn would happen if drilling proceeded?

They would cut communication

An evacuation alarm would be triggered

The ISS would lose power

The astronauts would be abandoned

What action did Russia decide to take as a result of the leaks?

Increase the number of astronauts

Decommission the PrK tunnel

Repair the Zvezda module

Enhance communication with NASA

NASA supported the approach of drilling into the ISS hull.

True False

The leaks allowed air to escape at a rate of 2 to 4 pounds daily.

True False

The Russian space agency is called NASA.

True False

The situation in the ISS was resolved without an evacuation.

True False

The temporary stop to the leaks was due to the actions of NASA.

True False

The future of the ISS is uncertain regarding further repairs.

True False

NASA instructed its Crew-12 astronauts to prepare for an evacuation from the ISS due to a longstanding air leak on the Russian side and the gap .

Russian engineers used sealant to address the leaks in the gap .

The leaks had allowed air to escape for years, losing between 2 to 4 pounds daily.

The cosmonauts used a to cut through a structural bracket.

As a result of the leaks, Russia decided to the PrK tunnel.

Concerns about the safety of further repairs linger as the future of the ISS remains .

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