[12:19 Sun,7.January 2024 by blip] |
In terms of streaming, history was quickly made just before Christmas when NASA managed to send a 15-second cat video (what else?) to Earth by laser from 31 million kilometers away. The video signal took 101 seconds to reach us and was sent at the maximum system bit rate of 267 megabits per second (Mbps). ;) The encoded video sequence was received by the Hale Telescope at Caltech Palomar Observatory and then sent "live" via the Internet to NASA&s Jet Propulsion Laboratory (JPL) in Southern California, where it was played back in real time.
The technology demonstration was carried out as part of the  space probe (Psyche mission), which aims to study asteroids (mainly Psyche) between Mars and Jupiter. It is scheduled to arrive there in 2029. The space probe is also carrying new laser-optical communication technology (Deep Space Optical Communications / DSOC), with a bandwidth 10 to 100 times that of previous radio communication. The cat named Tater, which can be seen in the video, is not on board - the clip was recorded before the probe was launched and transferred to the system; usually, only simple test images are generated and used for such test transmissions. In order to emphasize the groundbreaking nature of the demo - and of course to attract more attention - a cat was chosen as the protagonist in this case, in reference to the first attempts at television transmission in the USA. In 1928, a small cartoon cat, Felix the Cat, was filmed as a statue and these recordings were broadcast on a trial basis.  more infos at bei www.jpl.nasa.govdeutsche Version dieser Seite: NASA beamt Katzenvideo per Laser aus dem Weltall |
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