Linked Questions

10 votes
6 answers
1k views

Hijacked space data, notable instances of recovering images or other goodies from someone else's space mission?

These are images taken by a Chinese cubesat in lunar orbit, taken again by a Dutch radio telescope. The original of this GIF was tweeted here and I've reconstructed it because I don't know how to ...
uhoh's user avatar
  • 149k
14 votes
5 answers
2k views

What's stopping space probe communication from being jammed?

Space probes use radio waves to communicate back to Earth - I would imagine a probe sent many decades ago, using very little energy and from very far away would be sending an incredibly weak signal ...
Probe1's user avatar
  • 143
17 votes
1 answer
1k views

What, if any, mechanisms prevent unauthorized commands?

Since deep space probes and satellites receive commands from Earth via radio, what prevents unauthorized commands from being accepted by such devices? For deep space probes, the required power of ...
user avatar
8 votes
1 answer
1k views

What Soviet signals (if any) attempted to scramble communication and sabotage Apollo missions?

The NPR.org news item and audio podcast JoAnn Morgan: The Only Woman In The Firing Room During Apollo 11 features an excellent interview with JoAnn Morgan and other KSC personal. It's a short but ...
uhoh's user avatar
  • 149k
7 votes
2 answers
641 views

Is secure communication in space important?

How important is secure communication in space? Science-related research is often made public, but does that mean all communications must be unprotected?
Pras4's user avatar
  • 335
8 votes
1 answer
365 views

Where can I find relevant papers describing the cryptographic algorithm(s) and/or techniques used within KY-171 and KY-172?

The KY-171 Audio Frequency Coder was used for the NASA Project Mercury (1958-1963) to encode radio traffic between ground stations, as well as between ground stations and the space capsule. It was ...
e-sushi's user avatar
  • 185
1 vote
2 answers
254 views

Why were two simultaneous command transmissions interpreted by Kosmos 57 as an order to begin the descent?

This answer to Encryption in radio system points to the Wikipedia article Kosmos 57 which says: The unmanned spacecraft was destroyed on its third orbit around Earth. Two ground control stations, ...
uhoh's user avatar
  • 149k
5 votes
1 answer
576 views

What information was stolen from JPL during the Raspberry Pi hack?

The Engadget article A rogue Raspberry Pi helped hackers access NASA JPL systems highlights an incident where a networked Raspbery Pi at JPL was used to gain access to several other networks, ...
uhoh's user avatar
  • 149k
6 votes
1 answer
296 views

How does NASA ensure nobody else communicates with probes? [duplicate]

We often hear about how various parts of Voyager have been turned off or on, or how course corrections have been made. How does NASA know that nobody else on Earth can send instructions to a probe? It ...
Marnanel Thurman's user avatar
5 votes
0 answers
165 views

When, if ever, did deep space probes start using encryption?

What, if any, mechanisms prevent unauthorized commands? Asks what measures are taken for spacecraft, although the answer doesn't go much farther than pointing to the What would one need to do in order ...
SE - stop firing the good guys's user avatar