https://edition.cnn.com/2020/04/27/tech/spacex-starship-sn4-test-trnd/index.html
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A prototype of a SpaceX ship meant to one day take humans to the moon and Mars has passed a key test.The SpaceX Starship SN4 has completed a cryogenic proof test, SpaceX founder and CEO Elon Musk tweeted late Sunday night.The cryogenic pressure test is needed to prove that the starship “is able to withstand exceptionally high pressure caused by very cold fuel, which is an issue in space,” according to the Brownsville Herald, a newspaper based in southern Texas.SpaceX runs a rocket production center and test site several miles east of Brownsville near Boca Chica. The area was the site of the recent test, according to NASASpaceFlight.com.
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Source: cnn.com