David GaladíEnríquez 🐀 @DGaladi@red.niboe.info

Doubts Grow About the Biosignature Approach to Alien-Hunting | Quanta Magazine https://www.quantamagazine.org/doubts-grow-about-the-biosignature-approach-to-alien-hunting-20240319/

Status update on the Voyager 1 spacecraft which has been sending a 0101 pattern since Nov 2023.

The problem seems to be a failed memory part in the FDS computer; engineers are planning to move ~200 words of software from one region to another, according to Joseph Westlake, director of NASA’s heliophysics division, who was speaking at a March 20 meeting of the National Academies’ Committee on Solar and Space Physics.

Westlake sounded very optimistic.
👍
https://www.nationalacademies.org/documents/embed/link/LF2255DA3DD1C41C0A42D3BEF0989ACAECE3053A6A9B/file/D727AF88E8C806D7A1F75C8401AF9CF23BCCC2EC9F3A?noSaveAs=1
17/n

La rotación de la Tierra también está afectada por la crisis climática. Lo cuenta @aberron en @eldiarioes con comentarios de @Joaquin_Sevilla.
https://www.eldiario.es/sociedad/cambio-climatico-afecta-hora-universal-coordinada-relojes_1_11245032.html
Sobre los muchos cambios en esta rotación, la entrada de #wikipedia en inglés está bastante completa: https://en.wikipedia.org/wiki/Earth%27s_rotation#Changes

Joaquín Reyes sobre el "ya no se puede decir nada" y la "cultura de la cancelación"

Aviso a navegantes ;)

Esto es hoy a las 19h, UTC+1. Muy agradecida desde ya a quien pueda venir ❤️

#Komunikilo #ComunicacionesLibres

RE: https://bcn.fedi.cat/objects/a4456712-2e26-4072-9d69-a9a052419945

Sobre l’odissea de la nau Voyager I
Un viatge de 46 anys amb carambola aprofitant una disposició de planetes que només es repeteix cada 175 anys, i ja fora de la heliosfera (és a més de 22.5 hores llum d’aquí!)

Com un raig còsmic pot haver-li capgirat la memòria, malmetent-ne les comunicacions, i les peripècies per a recuperar la nau i allargar-ne una mica més el final

https://www.scientificamerican.com/article/nasa-restores-communications-with-ailing-voyager-1-spacecraft/

Good news from the Voyager 1 spacecraft that has been stuck sending a 0101 pattern since Nov 2023.

The team has long suspected the root cause to be a corrupted area of memory in the FDS computer. On Mar 1, they sent some commands to make the FDS skip around sections of memory. The data stream rcvd 45 hours later looked different and was decoded to contain a read-out of the entire FDS memory!

Hopefully, they can now identify and fix the offending memory words.
🤞
https://blogs.nasa.gov/sunspot/
14/n

Por cierto, es buen día para recordar la novela Contact (Carl Sagan) en la que, a diferencia de la película, el número pi juega un papel importante... 🖖

Happy Pi Day! 🥧
And Happy Birthday to Albert Einstein.

Here are a few mathematical representations of π developed over the ages. Can you identify the mathematicians behind these equations?

https://en.wikipedia.org/wiki/Pi
1/n

The key issue is whether this will lead to an effective protection of the night sky or to consolidate the priority of industrial and military uses of the LEO region, uses that the IAU seems to accept as taken for granted.
https://www.iau.org/news/pressreleases/detail/iau2401/

@arstechnica Turns out the Fall of the Library of Alexandria was due to Elsevier cancelling their subscription.

Tots els articles de l’Enciclopèdia catalana en accés obert sense registre ni iniciar sessió: #català https://www.enciclopedia.cat/