"Human spaceflight" refers to the act of sending people into space. It involves astronauts traveling and exploring beyond Earth's atmosphere, usually in specially designed spacecraft.
The center has been operational in one form or another since Project Mercury, NASA's first human spaceflight program. (sciencedaily.com)
«I am an unabashed supporter of space exploration in general and of human spaceflight in particular,» Griffin told Congress in 2003, when he called for a human return to the moon and a trip to Mars. (discovermagazine.com)
Bolden had vowed in prior weeks that NASA's overarching long - term goal remained a manned mission to Mars, and Obama made that official by announcing his proposed timeline for human spaceflight in a series of what he called «specific and achievable milestones.» (scientificamerican.com)