Why Is Helium Causing Problems with Spacecraft? — VOA Learning English
Topics: наука й природа
Beginning
Helium leaks have been a major problem for spacecraft and rockets.
Recent reports about Boeing’s Starliner and SpaceX’s Polaris Dawn mission have involved problems controlling helium. Recently, the Starliner had a helium leak in a propulsion system. Polaris Dawn also had helium issues on its ground equipment.
Helium leaks have affected past missions including the Indian Space Research Organization's Chandrayaan 2 and the European Space Agency’s Ariane 5.
Recently, Reuters news agency explored why spacecraft and rockets use helium, and why it can cause problems:
Why is helium used on spacecraft?
Helium is inert, meaning it does not chemically react with other substances. It also does not burn.…
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