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Source: [6] effects on biological damage related to differences between space radiation and x-rays; dependence of risk on dose-rates in space related to the biology of DNA repair, cell regulation and tissue responses; predicting solar particle events (SPEs) extrapolation from experimental data to humans and between human populations
Radiation in space usually comes from three main sources: The Van Allen radiation belts; Solar proton events and solar energetic particles; and; Galactic cosmic rays. For long-duration missions, the high doses of radiation can damage electronic components and solar cells.
Space engineers helped design heart pumps now used to keep people in need of heart transplant alive until a donor heart becomes available. [28] Discoveries concerning the human body and space, particularly the effects on the development of bones, may provide further understanding of biomineralization and the process of gene transcription. [29]
Even with this small rate of loss, life in the Solar System would disappear in a few hundred thousand years, and the potential total time-integrated BIOTA of 3·10 30 kg-years under the main-sequence Sun would decrease by a factor of 5·10 5, although a still substantial population of 1.2·10 12 biomass-supported humans could exist through the ...
Space exploration, like its classical form astronomy, is one of the main sources for space science. While the observation of objects in space, known as astronomy , predates reliable recorded history , it was the development of large and relatively efficient rockets during the mid-twentieth century that allowed physical space exploration to ...
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Spaceflight (or space flight) is an application of astronautics to fly objects, usually spacecraft, into or through outer space, either with or without humans on board.Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellites in orbit around Earth, but also includes space probes for flights beyond Earth orbit.
Stephen Hawking is a supporter of space travel, in part, because he thinks the survival of humanity depends on it. Hawking shared these thoughts in an afterword for Julian Guthrie's book "How to ...