One year in space

Hi,
today I will write about the one year mission on International Space Station.

What needs to be done for mission on Mars. (Source)

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Usually when there are astronauts on ISS they are there for half a year, conducting experiments and so on. The problem is that we do not have much data about what happens when the astronaut is away for longer time. This is a problem for long term missions on Mars and so on.

We know that bones weaken over longer periods of time because body adjust their strength to how much they are used which is not much when you are in microgravity.

Of course muscles weaken too, both of those problems are almost balanced by 2 hour workout everyday, it is not enough and the astronauts need to do some rehabilitation afterwards.

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Now there is this mission called One Year in Space. There were actually people from Russia who were longer time in space their condition was not studied much. In 1st March astronauts Scott Kelly and Mikhail Kornienko will return after one year in Space. Both of them were observed already one year before the mission and they will be observed one year after it. Scott Kelly even has a twin who is too astronaut so they will get even more information from that because they can compare their condition.

It may take a long time to get all the results since scientists have a lot of data and their saliva will still remain frozen on the board of ISS before we are able to bring it back.

Dragallur

I already mentioned one year mission in this post.

 

 

WTF? A conspiracy? 3) Van Allen radiation belt

Hi,
one of arguments by hoaxers is that astronauts would never be able to pass Van Allen radiation belts.

First of all, what are the radiation belts.
Those are belts around whole planet created by interaction of Earth`s magnetosphere and solar wind.
Solar wind is flow of energetic particles from Sun. Those belts were first discovered by James Van Allen.
There are two parts of them. Outer belt which is less dangerous and inner belt where is much more charged particles and especially protons.
It was also proved that there is antimatter in those belts but it is just such a low amount that we would not be able to use it anyway.

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Well so hoaxers made up that if human being tried to cross this radiation belt it would kill him. The problem is that it would not, if he went fast enough.

Van Allen`s radiation belts are not stationary which means that there are days when there is more radiation and days when there is less.
Quess when NASA wanted Apollo to fly, huh?
So Apollo 11 went in angle of 30° from equator where the concetration of charged particles was smallest.
The fatal dose of radiation is 1000 rads while the astronauts got from the most dangerous part about 26 rads, which they survived.
This site more deeply explains it.
Most of the charged particles would not be even able to penetrate the space craft. Those which would, would give astronauts a dose about 50mSv. Which is something but it even counts with “higher” number of protons to not going through but all of them shooting the body.
The dosimeters you can check here.

Dragallur

Apollo missions: Apollo 10

Hi,
what a surprise! I am here again with Apollo missions this time with fourth manned mission.

Apollo 10 was launched in the year 1969 May 18 and 16:49:00 PM. Members of crew were three of course: from left to right Cernan, Stafford and Young.

Stafford was captain. Apollo 10 crew were unique because it was first Apollo mission where all members were already in space (Apollo 11 was second and last). Both Young and Stafford were flying for the third time while Cernan for second.

There was also back up crew if some problems occurred but Cooper and Eisele (Apollo 7) were not in favor of NASA because of some incidents on their missions so it was not planned to move them on next mission (as was usual) and they were back up crew only because NASA did not have enough experienced astronauts.

Highlight of this mission were prepared so that they had all data they needed for Apollo 11 which would two months later land on Moon. Everything they needed to do was done, the most important thing was to approach Moon as close as possible.
By one historian it is said that NASA had to give them low amount of fuel so they could not land Moon even if they wanted.

This approaching was achieved by departing a little Lunar module (called Snoopy, it is on the picture with moon) leaving only Young on the board of “Mothership” while Stafford and Cernan achieved the distance from surface of 15.6 km.

Apollo 10 orbited Moon thirty times and then after 8 days and 3 minutes and 23 seconds they splashed down in the Pacific ocean (actually mission was planned 1 minute shorter this means that they really messed it up).

One of Snoopy´s stage was left there and nobody knows where it landed (crushed) but in the year of 2011 group of amateurs started project to find it out.

Dragallur

I was taking data from these pages:
https://www.nasa.gov/mission_pages/apollo/missions/apollo10.html#.Vi5Wz7erTc

https://en.wikipedia.org/wiki/Apollo_10

Read about Apollo 9!