Discoverer: named after Edmund Halley opening date: 1758 (first predicted perihelion) Alternate designations: comet Halley (Halley), 1P Orbital characteristics: Age: 2449400.5 (17 February 1994) Aphelion: 35.32.e. Perihelion: 0.586.e. The semi-major axis: 17, 8 and.e. The eccentricity repulsed: 0, 967 Orbital period: 75, 3 and the Inclination of the orbit to the Ecliptic plane: 162, 3 degrees Last perihelion: 9 February 1986 Next perihelion: 28 July 2061 g the Period of revolution around the Solar system: from of 74.4 to 79.2 years. The average value of 76 years. Thanks to a successful “visits” in 1986 to comet Halley spacecraft “VEGA-1 and VEGA-2” (USSR) Giotto (ESA), “Suisei” and “Sakigake” (Japan) scientists got the first pictures of the core and comprehensive information:
a summary of other presentations about the sky
“School of astronomy” – Observation – the basis of astronomy. Major achievements in space exploration. Observation of solar Eclipse on 1 August 2008. Our Galaxy Is. Continue reading
New ships Russia: Soyuz TMA-MS, Progress MS, PCA and PTK NP Rus.
New ships USA: Cygnus, Dragon, CST-100, Orion.
Existing ships of Russia: Progress M, Soyuz TMA-M.
Existing ships of the United States: no.
Signus together with Soyuz TMA-M
Soyuz TMA-MC is a Russian multi-seater spacecraft for flight in earth orbit.
New upgraded version of the spacecraft “Soyuz TMA-M”. The update will affect almost every system of manned spacecraft. The first launch is planned no earlier than 2016.
The main points of the program of modernization of the spacecraft:
the energy-conversion efficiency of solar cells, will be enhanced through the use of more efficient Photovoltaic cells;
the reliability of rendezvous and docking of spacecraft with the space station due to the change in engine installation of the mooring and orientation. Continue reading
The main problems during space flight are considered motion sickness, fatigue, dehydration, loss of appetite and back pain
The astronauts can perform on the International space station not more than six months. And for good reason.
The loss of muscle and bone mass in zero gravity during this time is so great that the continued presence in space for humans is not possible.
Future space tourists will not go through the same tough training as cosmonauts and astronauts – how flying can affect their health?
In an article published by the British medical journal, argues that the district doctors in British clinics need to be prepared for the fact that in the near future, their patients will begin to wonder whether their body to move space travel.
Only a handful of doctors have sufficient knowledge in the field of space medicine to give expert advice. Continue reading