Secret Air Force space plane preparing for return to Earth.

The X37B is a spacecraft measuring 8 meters high, equipped with a front kerosene fuel tank, an experiment bay, and a larger hydrogen peroxide tank. It can operate at altitudes between 125 and 570.5 miles above Earth. The X37B has exceeded its designed maximum duration of 270 days in orbit by six months. It is expected to return to Vandenberg Air Force Base shortly.

What is the height of the X37B spacecraft?

• 12 meters

• 8 meters

• 10 meters

• 6 meters

Which of the following is NOT part of the X37B's structure?

• Front kerosene fuel tank

• Experiment bay

• Solar panel

• Hydrogen peroxide tank

What is the maximum altitude the X37B can fly above Earth?

• 125 miles

• 250 miles

• 570.5 miles

• 700 miles

How much longer has the X37B been in orbit compared to its designed maximum duration?

• Four months

• Three months

• Six months

• Five months

Where is the X37B expected to return?

• Vandenberg Air Force Base

• Kennedy Space Center

• Edwards Air Force Base

• Cape Canaveral