Depression may be challenging to assess in a patient with dementia. In patients with AD, the presence of depression may range from 6% to 30%, depending on the diagnostic criteria employed (Cummings et al., 1995). The prevalence and course of depression in dementia are controversial, due to several confounding factors.
Astronauts use space shuttles(trasport people and equipment), Space probes (robotic exploration, Spacecrafts (trasport crew, equipment, and other technologies).
Orion will carry astronauts into deep space and then return them home to Earth. Orion will be able to travel to an asteroid or even Mars. NASA is developing a huge rocket called the Space Launch System, or SLS. This rocket is a heavy-lift launch vehicle. Orion will launch on top of this rocket.