NASA "Disadvantages Astronaut"

United States space agency, NASA, astronauts reported deficiencies to be assigned at the international space station. Number of NASA astronaut currently said to be very little space to perform tasks in the future.
This was revealed in the National Research Council report on Wednesday, September 7, 2011, consisting of 13 experts, including five former astronaut. Reporting from the BBC, NASA astronauts are suggested to increase the number to ensure the readiness of the agency conduct space missions.
One of NASA's ambitious mission in the future is a flight to an asteroid in 2025, and landing on Mars in 2030.
According to the report, currently there are only 61 people who worked on NASA astronauts. This figure is considered too small compared with the number of astronauts in 1999 reached 150 people. The decrease is caused by a number of astronauts who have been discharged tenure.
Although NASA's space shuttle program ended in July, after 30 years of flight, NASA would still put astronauts on the International Space Station (ISS). To reach this station, NASA will use the shuttle's Russian spacecraft and another private.
To perform this mission, the astronauts currently said to be still lacking. Astronaut corps numbered 50-60 people are feared not able to meet the needs of the assignment if there are astronauts who are sick or injured.
"The number of the current astronaut corps has no flexibility to accommodate the flight tasks, exploration, and new missions, or other unexpected events," the report as thick as 93 pages.
Looking for new astronauts also not an easy matter. NASA conducted last recruit in 2009 with six new astronauts. The new astronaut candidates must also meet the requirements that are not easy.
Among these are, astronaut candidate must graduate from the faculty of biology, physics, or mathematics accredited university. One prospective astronauts are pilots with 1,000 hours of flying a jet. The astronauts also must pass a physical test of NASA in the form of military tests and test flying.