Space NEWS #3

Hi,
today I am bringing third space news. This time I will talk about journey to mars and especially SLS the Space Launch System.


Ok it is planned. What? The journey to Mars. But sorry guys I can not tell you exactly when, actually noone know but it is planned by NASA to about 2030. Damn so far away, anyway I am looking forward to see faces of those none believers of moon landing when we will land on Mars.

So there is lot of stuff scientists have to do. There are many issues that need to be solved, and yes right we dont know how fast we can solve them.
But today I want to mention the SLS. Because Saturn V which was the rocket that took us to the Moon is not strong enough and not modern enough we need something better which will be lighter, faster, with more space for stuff to carry and still not too large.
The main problem with older rockets was that more than 90% of the weight was fuel which is not something that NASA wants to repeat, rather they are working on some new technologies.
For example almost one year ago in December NASA tested Orion spacecraft which will on top of SLS carry astronauts to Mars some day. Orion orbited succesfully Earth two times.
Lot of stuff is happening around journey to mars so I will try to update on this topic.

Dragallur
Picture thanks to NASA.
PS: hope those guys in wordpress will return the function “link to existing content” because right now it is pretty anoying to find every post I want to link to on my blog

Apollo missions: Apollo 8

Hi, nášivka
two months after Apollo 7 NASA launched next mission: Apollo 8. It was December 21st of 1968 when Borman, Lovell and Anders sat in Saturn V rocket. Uniqueness of this crew is that captain (Borman) was not the most experienced member because Lovell was already on two missions while Borman only on one.

This mission skipped some other plans of NASA right to testing all modules n the orbit around Moon. This was because of such a little time for finishing main mission, landing on Moon with men.
Even that there was such a sudden change in program, Borman and his crew spent 7 hours on simulator for each hour of the flight.

Mission was 6 days long. It was going without problems, they used three stages of fuel so they got up on Earth´s orbit and then for two and half an hour they were checking if everything is going well. They were also rotating rocket so they could take some pictures of Earth, they were first human who saw whole Earth.

Since they crossed radiation belt they received about 1.6 miligray (Maybe I will talk about that next time) while normal dose on Earth per year is 2-3 mGy.

Through whole flight spacecraft had to be rotating because without atmosphere heat shield would crack because of high temperatures (200 °C) and on the other side it would be freezing (-100 °C).

Because crew had some sleep problems Borman after few hours of sleep woke ill and then he was vomiting. It was very difficult to clean it up because of no gravity and he wanted not everybody to know.

After orbiting the moon and collecting data they made re-entry (most dangerous part of flight) to Earth´s atmosphere as is shown on the picture.

Dragallur