X-37B passes 600 days in orbit


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One of the Air Force’s two X-37B reusable mini-shuttles has now passed 600 days in orbit.

At this moment this is third longest X-37B mission. However, if the mission lasts four more months it will become the longest.

The article states that it is “unclear” what the mission’s overall purpose is, though we do know that some onboard experiments are testing the ability of some technology to function for long periods in space. I suspect that the spacecraft itself is testing this. When it returns they will look at it closely to see if its design was sufficient for it to do long multi-year missions and then go back to do it again. Moreover, knowing how to build such a craft is essential for building interplanetary spaceship that carry humans to and from the planets.

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