Nevertheless, USA aircrews represent an occupational group exposed to undocumented and unquantified radiation levels over the duration of their careers. In addition, the current ICRP guidelines for prenatal and public exposures for planned exposure situations, such as air flights, can be exceeded ...
“We’re looking to learn both from the first and the second flights of each of these same lander-type vehicles. NASA’s really a learning organization. So you can imagine after every mission, we look and we do lessons learned and we try to figure out how are we g...
Hot weather has forced dozens of commercial flights to be canceled at airports in the Southwest this summer. This flight-disturbing ___ is a warning sign. Climate change is projected to have far-reaching ___—including sea level rise flooding cities and shifting weather patterns causing long-te...
spaceships cost over $15,000,000 per seat. As a prelude to these exciting developments Virgin is also very pleased to have agreed terms to sponsor SpaceShipOne on its historic Ansari X Prize flights later this week and in early October. About the ANSARI X PRIZE Competition In order to win ...
the same attitude that killed astronauts on Apollo 1 in 1967, on Challenger in 1986, and on Columbia in 2003. The engineering data then said unequivocally that things were not safe and that disaster was almost guaranteed, but NASA and Congress demanded the flights go on anyway, to serve the...