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Cosmic neighbor: Proxima b is the near-Earth exoplanet. Image: Flickr
So many people need it for a trip to the next exoplanet Proxima b
A trip to a planet outside of our solar system would take 6300 years with a beam motor from D & B # 39; ions. The researchers calculated the size of the crew for such an intergenerational trip: it would therefore require at least 49 pairs.
If humanity wants to one day send a spaceship to the next planet beyond our solar system, according to a study, at least 49 pairs should embark. That's what two French researchers have calculated as a prerequisite for a genetically healthy population to survive the 6300-year-old journey to the next known exoplanet, Proxima Centauri b.
That's what Proxikma B. might look like. Image: AP / European Southern Observatory
To populate another solar system, the crew had to live and reproduce in spaceships during many generations. For that, the course of 98 people must begin, write Frédéric Marin of the University of Strasbourg and Camille Beluffi of the research company CASC4DE in the "Journal of the British Interplanetary Society".
Strict rules on board
For the selection of the crew, a number of questions must first be clarified: the number of women and men, the age and life expectancy, fecundity rates and maximum capacity of the spacecraft. In addition, strict rules for life on board are necessary and the number of births must be determined each year. In their computer simulation, the authors allowed incest and allowed reproduction only at the age of 32 to 40 years.
Proxima b compared to the Earth Image: Pinterest
In their calculations, Marin and Beluffi even calculated a catastrophe after 2500 years, which cost 30 percent of the life of the crew . However, there are still uncertainties – such as how cosmic radiation affects the crew.
Discovered two years ago
Proxima Centauri b – also called Proxima B for short orbits star Proxima Centauri, which lies about 4.2 light years from Earth. A light year is the distance traveled by light in one year and equals 9.5 trillion kilometers.
The discovery was announced by researchers in August 2016. But before this mission is clarified, that the planet is habitable, emphasize the authors.
(sda / dpa)
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