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Antikensammlung, 2nd century AD. Physical training has been present in human societies throughout history. Usually, it was performed for the purposes of preparing for physical competition or display, improving physical, emotional and mental health, and looking attractive. [1] It took a variety of different forms but quick dynamic exercises were ...
The selection and training of astronauts are integrated processes to ensure the crew members are qualified for space missions. [6] The training is categorized into five objectives to train the astronauts on the general and specific aspects: basic training, advanced training, mission-specific training, onboard training, and proficiency maintenance training. [7]
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, decreased ...
International Space Station crewmember Tracy Caldwell Dyson views the Earth, 2010. Human spaceflight (also referred to as manned spaceflight or crewed spaceflight) is spaceflight with a crew or passengers aboard a spacecraft, often with the spacecraft being operated directly by the onboard human crew. Spacecraft can also be remotely operated ...
The pioneering astronauts of the Polaris Dawn mission have a packed agenda during their five short days in space, but medical officer Anna Menon still found time to read to her children from orbit.
Timeline of space exploration. This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space. This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole.
The programme carried out six crewed spaceflights between 1961 and 1963. The program was the first program to put humans into space, with Yuri Gagarin becoming the first man in space on April 12, 1961, aboard the Vostok 1. [56] Gherman Titov became the first person to stay in orbit for a full day on August 7, 1961, aboard the Vostok 2. [57]
August 1949. " Dark They Were, and Golden-Eyed " is a science fiction short story by American writer Ray Bradbury. It was originally published in the magazine Thrilling Wonder Stories in August 1949, under the title " The Naming of Names ". It was subsequently included in the short-story collections A Medicine for Melancholy and S Is for Space.