If you want to get to Mars in Astra Malorum, you'll first need to align the planets. This step might confuse you, so check ...

Blue Origin scrubbed Sunday’s launch attempt due to poor weather, a cruise ship in restricted waters near the launch site, and ground system issues. The company says the next available launch ...

Human crews headed for Mars are still looking at journeys that last most of a year, long enough for radiation, boredom and mechanical risk to pile up. Nuclear propulsion promises to compress that ...

The idea of a human mission to explore Mars has been studied repeatedly over the past 75 years. More than 1,000 piloted Mars mission studies were conducted inside and outside NASA between about 1950 ...