The James Webb Space Telescope is on the road again. After passing its final test at NASA's Goddard Space Flight Center in Greenbelt, Maryland, the megatelescope is ready for the next stop on its trip to space: further testing at Johnson Space Center in Houston.
The final mirrors for the giant space observatory arrived at Goddard in 2014, and the telescope's construction was finally completed in November 2016, after more than 20 years of construction. Since then, the instrument has endured a battery of testing to ensure that it can withstand the rigors of launch and deep space. Webb is slated to launch in 2018, when it will become the world's largest telescope to fly to space. (NASA highlighted some of Webb's testing in a new video.)
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