Annual ReviewsNASA’s recently launched asteroid hunter, Psyche, is designed to give us a look at a body that could resemble depths far within the Earth, where we can never go. But one instrument tagging along for a ride is exciting scientists who specialize in a completely different field — that of space communications. https://arevie.ws/Psyche_KM via @KnowableMag
Nick has moved to MathstodonThe 29th commercial resupply services mission (CRS-29) to the International Space Station launches tonight. Among other things, it will deliver ILLUMA-T, a #laserCommunications terminal that will be used to experiment with communications to the ground via the #LCRD laser communications relay satellite. More information about ILLUMA-T can be found here:
https://www.nasa.gov/mission/illumat/
Launch currently looks like it's scheduled for 8:28 pm. It will be live streamed, and there are several ways to watch it (1/2).
#NASA #IllumaT #SpaceCommunications #spacecomms #ISS #lasercom #lasercomm #lasercomms
Doc Edward Morbius ⭕@danyork Unrelated to LEO satellite internet clusters: are you aware of any work being done to secure long-distance space-based transmissions / internet?
Anything beyond a few hundred milliseconds round-trip starts getting really slow with handshakes and assured protocols. That includes TCP, but also pretty much all secure (TLS, SSL, SSH, S/MIME) protocols in which keys and secrets are exchanged. That might be viable for non-realtime transmissions to a few light-minutes out, but even interplanetary comms to near neigbours (Mars, Venus) at closest approach are likely nonviable, let alone the out planets, or Mars/Venus at distance or opposition.
(Managing round-the-Sun links will also prove ... interesting.)
I've done some casual digging but have found nothing as yet.
I'm assuming a periodic key update / assertion and/or one-time password / one-time pad mechanism might be required.
#InterplanetaryInternet #Internet #Infosec #Space #SpaceCommunications #Security #Encryption