The X-15 was the first major investment by the United States in manned space flight technology.

VOA: special.2010.07.07

Scientists developed the new welding technology at the Marshall Space Flight Center in Montgomery,Alabama.

VOA: special.2009.12.30

The Australian government said the technology was part of the country's "proud history" in space science and research.

VOA: standard.2010.07.24

"We are entering the golden era of the International Space Station program, and science and technology demonstrations are going to take off here."

VOA: standard.2009.11.30