The giant six-engine Stratolaunch jet, with a 117-metre wingspan, is designed to launch small satellites while in the air and the test flight brings to life a dream held by late Microsoft co-founder Paul Allen.
Humans have done a remarkable job of making their presence felt on Earth, and now we're spreading to outer space. In doing so we've given rise to a fertile new profession: space archaeology.
A crewless capsule from Elon Musk's SpaceX program successfully returns to earth after visiting the International Space Station, raising prospects for human space flight from US soil once more.
They are the most highly-trained pilots in the world, but six months in space reduces astronauts' driving skills to that of an L-plater.
Exactly half a century ago, the risks involved in deciding to send the crew of Apollo 8 into lunar orbit for Christmas in 1968 would make the Moon landing seem easy in comparison, NASA insiders remember.
The Pentagon's new Space Command will be the first step towards the US President's much-touted Space Force and will work to protect America's vast array of military satellites, which are largely unprotected.
Queensland's bid to become the next big player in Australia's race for space takes a giant leap forward as a rocket carrying Australia's first commercial payload is launched skyward in the state's southern outback.
The CSIRO says Australian industry needs to step up and get involved in NASA's plans for human bases on the Moon.