#16
Na, szóval a lényeg az, hogy baromi nagy szerencsénk van nekünk a Földdel, mert amúgy kint, az űrben cudar világ van általában.
Re: a Jupiter Európa nevű holdja
„Radiation menace
Assuming the ocean contains biologically-useful compounds and that some of these find their way to the surface, they may not survive very long there.
“It is unlikely that any big molecules will be found in exposed regions,” says Chris Paranicas, also from Johns Hopkins University.
Radiation in the form of high-energy electrons and ions continuously bombard the top layers of Europa’s icy crust. This deadly dose is due to the fact that Europa—along with the three other Galilean moons (Io, Ganymede and Callisto)—orbits within Jupiter’s radiation belts.
These belts are much like Earth’s Van Allen belts but bigger, since Jupiter’s magnetic field is ten times stronger than Earth’s. Electrons and ions from the solar wind become trapped in the magnetic field and spiral down onto Jupiter’s poles to create impressive auroras.
The radiation in Jupiter’s belts is a million times more intense than in Earth’s belts. For this reason, spacecraft—such as the Galileo orbiter—have typically tried to spend as little time as possible inside the belts. Although the radiation is generally well-understood, no one has yet figured out precisely what the effect is on Jupiter’s moons.” Innen Utoljára szerkesztette: Kara kán, 2017.10.06. 23:07:59
#16