chapter  13
18 Pages

◾ Microorganisms in Space

ByGERDA HORNECK, RALF MOELLER

Once sent to space, living beings are confronted to an extremely hostile environment not experienced on Earth, characterized by an intense radiation eld of solar and galactic origin, a high vacuum, and extreme temperatures (Table 13.1). is environment or selected parameters of it are the test bed for astrobiological investigations, thereby exposing chemical or biological systems to selected parameters of outer space or dened combinations of them.