** The Official Space Flight Thread - The Space Station and Beyond **

Today's GRAIL launch attempt has been scrubbed. They will try again on Saturday. The reason given is that they want to allow additional time to review propulsion system data from Thursday’s detanking operation.
 
The new launch attempt will be tomorrow, Saturday September 10. The launch opportunities are at 13:29:45 and 14:08:52 BST (08:29:45 and 09:08:52 EDT).
 
The good news is that the weather forecast looks much better for tomorrow’s next GRAIL launch attempt with a 60% chance of acceptable conditions. The same holds for Sunday.
 
The postponement today was due to a heater system staying on longer than planned during detanking. Today's management review concluded that no damage had occurred to any components and we are GO for another launch attempt tomorrow at 13:29:45 or 14:08:52 BST (08:29:45 or 09:08:52 EDT).
 
Ardmanz said:
I thought it may have been something like that. Thanks for clearing that up for me.
Click to expand...

If you look into it further, all of the larger planets and moons are roughly spherical. The smaller stuff become less and less spherical.

Everything "solid" is basically liquid to some extent, so flows like a liquid - if you pour some thick goopy oil on the floor it takes a while to cover the area - but water is much quicker. Rock behaves the same, so eventually it will pool like water.

The bigger planets and stars are mostly made of gasses, so they behave a bit differently and are usually wider at the equator than at the poles. This is because they are fluid and have the same sort of forces as you get when sitting on a roundabout.
 
grailpad5.jpg


grailpad6.jpg

Looking good.
 
The final poll says GO but still a chance that the weather balloon will give red.



EDIT: Weather gone red. See you back for the 14:08:52 BST attempt.
 
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