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The accuracy of galactic cosmic ray environmental models, transport codes and nuclear interaction cross sections allow NASA to predict space environments and organ exposure that may be encountered on long-duration space missions. The lack of knowledge of the biological effects of radiation exposure raise major questions about risk prediction. [32]
The record for most time in space is held by Russian cosmonaut Oleg Kononenko, who has spent 1068.03 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.
As of 2024, there have been 19 astronaut fatalities during spaceflight that either crossed, or was intended to cross, the boundary of space as defined by the United States (50 miles above sea level). [1] [2] Astronauts have also died while training for space missions, such as the Apollo 1 launch pad fire that killed an entire crew of three ...
First human spaceflight from the State of New Mexico. Reached an altitude of 89.24 km (55.45 mi), crossing the U.S. definition of space, but not the FAI's definition. 331 Nie Haisheng (3) Liu Boming (2) Tang Hongbo: 17 June 2021 Shenzhou 12: TSS: 17 September 2021 Shenzhou 12: First crew to Tiangong Space Station. — David Mackay Michael ...
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 ...
Krikalev was born in Leningrad in the Soviet Union (now Saint Petersburg, Russia). He enjoyed swimming, skiing, cycling, aerobatic flying, and amateur radio operations, particularly from space (callsign U5MIR). He graduated from high school in 1975. In 1981, he received a mechanical engineering degree from the Leningrad Mechanical Institute ...
The program marked the last launch of the Saturn V rocket on May 14, 1973. Many experiments were performed on board, including unprecedented solar studies. [42] The longest crewed mission of the program was Skylab 4 which lasted 84 days, from November 16, 1973, to February 8, 1974. [43]
Midcourse Space Experiment (MSX) USN: 24 Apr 1996: 26 Feb 1997: Earth orbit (900 km) [177] Submillimeter Wave Astronomy Satellite (SWAS) NASA: 6 Dec 1998: Last used in 2005: Earth orbit (638–651 km) [178] [179] Wide Field Infrared Explorer (WIRE) NASA: 5 Mar 1999: no observations: Re-entered May 10, 2011 [180] [181] Spitzer Space Telescope ...
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