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Questions tagged [space-technology]

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9
votes
1answer
271 views

Can message passing be used for a CPU redundancy and load-balancing construct

In bare metal or minimal RTOS type embedded systems with multiple processors is it possible to have an identical program running on each processor that uses Message Passing Interface (MPI) to provide ...
29
votes
2answers
4k views

Code development process for Voyager mission?

Voyager 1 reached interstellar space in August 2012 and is the most distant human-made object in existence. Launched just shortly after its twin spacecraft, Voyager 2, in 1977, Voyager 1 explored the ...
58
votes
4answers
7k views

Development process used for the code on Apollo 11 missions?

The Apollo missions had technology no more complicated than a pocket calculator. From link here, there's an information about Apollo Guidance Computer (AGC) The on-board Apollo Guidance Computer (...
11
votes
1answer
519 views

Why would it take hours to decode transmissions from Curiosity rover via MRO?

This video clip by NASA says that data from Curiosity relayed by the Mars Reconnaissance Orbiter (MRO) would be stored for a few hours, then transmitted to Earth (apparently taking about 14 minutes), ...
6
votes
1answer
707 views

Are there any FOSS operating systems available that conform to NASA's JPL coding standards? [closed]

I, like many others, have been completely enamored with the recent successful landing of Mar's Curiosity rover. After reading a couple of articles, and following a few links, I've found a couple C ...
14
votes
2answers
702 views

What is Curiosity's packet structure?

For NASA's Interplanetary Network, what does a packet look like? It's obviously a form of redundant protocol, stored at the receiver and with built back up. Is there any documentation on the packet ...
541
votes
2answers
198k views

What is the Mars Curiosity Rover's software built in?

The Mars Curiosity rover has landed successfully, and one of the promo videos "7 minutes of terror" brags about there being 500,000 lines of code. It's a complicated problem, no doubt. But that is a ...
303
votes
4answers
107k views

What software programming languages were used by the Soviet Union's space program?

I got interested in the Soviet space program and was interested to discover that the software on the Buran spacecraft circa 1988 was written in Prolog. Does anyone know what languages might have ...