How NASA Is Readying the Successor to the Hubble Space Telescope

Biggest space telescope ever built will one day take over for Hubble.

Using a crane, engineers were then able to lift the part and safely lower it into the Space Telescope Transporter for Air Road and Sea (STTARS), which was then hooked up to a semi truck that plodded along at a gentle 5 mph to the nearby Joint Base Andrews.

The largest cargo plane in the United States fleet, a C-5 military plane, then had the honor of flying to the engineers in Texas what will surely be a vital piece of space history.

“We've got to test the test,” Andrew Booth, a NASA engineer, said in a statement. "That's why this Pathfinder is so valuable because it will ensure the testing on the actual telescope is accurate."