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The effects of spaceflight on the human body are complex and largely harmful over both short and long term. [ 1] Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton ( spaceflight osteopenia ). [ 2] Other significant effects include a slowing of cardiovascular system functions ...
Sleep in space. An astronaut asleep in the microgravity of Earth orbit-continual free-fall around the Earth, inside the pressurized module Harmony node of the International Space Station in 2007. Sleeping in space is part of space medicine and mission planning, with impacts on the health, capabilities and morale of astronauts.
Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...
Scientists have discovered a mysterious pulsating light—and they don’t know what it could be. It pulses at a rate of about once every 21 minutes, and has been doing so since at least 1988.
This week, explore a lunar cave that could shelter astronauts, meet pups having nips and tucks, marvel at a nearly pristine fossil of an ancient shark, and more.
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The record for most time in space is held by Russian cosmonaut Oleg Kononenko, who has spent 1077.672 days in space over five missions and is currently in space onboard Soyuz MS-24/25's one year long-duration mission on ISS. If this mission lasts 300–365 days, Kononenko will have spent a total of 1,036-1,101 days in space.
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