David GaladíEnríquez 🐀 @DGaladi@red.niboe.info

I don’t own a car and I ride my bike a lot, often on very busy city streets. I always wear a helmet when I ride — not because it makes me less likely to get hit by a car, but because it makes me less likely to suffer from brain damage if and when I do get hit by a car.

However, as Dave Walker (@davewalker) points out, there are MANY other and much better ways to make cycling safer for everyone. 🚲

#BikeTooter #Cycling

@angel @rodricels @euklidiadas

Aportando más color a este último comentario se sabe que el último mamut murió unos mil años después de comenzada la construcción de las pirámides de Egipto.

#TIL that fortunately someone has already invented a term that was on my mind but for which no word seemed to already exist.

Thank you, Urban Dictionary: https://www.urbandictionary.com/define.php?term=Spacewashing

#Spacewashing #Space #SpaceSustainability

A estas alturas ya sabemos todos que lo de que nos fumigan es falso. Pero, ¿Sabéis cuál es el origen del bulo?
https://blog.sandglasspatrol.com/cual-es-el-origen-del-bulo-de-los-chemtrails/

Así hemos contado en Canal Sur el bólido impresionante que se ha visto esta pasada madrugada en España y Portugal. Gracias, @jmmadiedo

Six months after it suffered a serious brain injury and after months of mind-boggling ultra-long-distance surgery, the Voyager 1 spacecraft walked and talked at full data rate today!

After a full memory readout today at 40 bps, Voyager 1 switched to the science-mode 160 bps rate, which the DSN site at Goldstone was able to receive and decode.

Congrats and kudos to all who made it happen.
👏
https://eyes.nasa.gov/dsn/dsn.html
29/n

Bumper sticker: “Creationists shouldn’t be allowed to use fossil fuels.”

Sounds fair

https://www.seti.org/keeping-eye-comet-a3-next-naked-eye-comet-candidate
In early 2023, a new comet took stargazers by surprise. Called Comet C/2023 A3 (Tsuchinan-Atlas), this icy visitor was discovered by two separate observatories in South Africa and China. Comet A3 had scientists and amateurs alike wondering if it would be the next naked-eye comet to light our skies. As 2024 unfolds, we eagerly anticipate whether Comet A3 will deliver the breathtaking celestial display we have all been hoping for!

#comet #science #scicomm #citizenscience

Ouch.

If you were in orbit around Saturn today, you would see Mars transit across the Sun! From Saturn's orbit, the Sun is only 10% of its size as seen from Earth, and Mars would be only ~1/200th of _that_. You would need good equipment to see this transit...

Artificial light is good and beneficial to humanity. But it's also possible to have too much of a good thing.

Follow the Five Principles for Responsible Outdoor Lighting: https://darksky.org/resources/guides-and-how-tos/lighting-principles/

#LightDay2024 #ALAN #LightPollution

Bad news for radio astronomy AND optical astronomy. Not only is 'Supplemental Coverage from Space' (aka direct-to-cell) transmission unregulated at this point, but the 2nd generation of #BlueBird satellites will be monstrously large reflectors of sunlight.

https://www.reuters.com/business/media-telecom/att-ast-spacemobile-tie-up-provide-space-based-broadband-network-2024-05-15

#Space #SpaceSustainability #SCS #RadioAstronomy #RFI #RadioInterference

So, over in the astronomy world there is some considerable consternation about a tweet from eminent satellite tracker Jonathan McDowell.

Apparently "Starlink Precipitation" is now a thing. And yes, you got that right, Starlink precipitation is pieces of Elon Musk's fucking internet satellites raining down from space.

See also this post from @carlysagan: https://mastodon.social/@carlysagan/112448150797509408

¡Una noche inolvidable!
Como todos sabemos, la noche del 10 y madrugada del 11 de mayo, la aurora llegó a ser visible desde latitudes tan bajas como las de las Islas Canarias. El punto desde donde la captamos, no llegaba aún a 28°N.

Jajajajaja https://www.elmundotoday.com/2024/05/hipocresia-un-video-muestra-a-greta-thunberg-respirando-oxigeno/

Carme Jordi é doutora en Física pola Universidade de Barcelona (1985). A súa carreira científica comezou no campo da astrometría de precisión e sistemas de referencia. Ademais traballou como técnica de sistemas no sector privado antes de incorporarse á UB. Dende 1991 é profesora titular do Departamento de Astronomía e Meteoroloxía da UB. Pertence ao Instituto de Estudos Espaciais de Cataluña, ao Instituto de Ciencias do Cosmos e á Unidade Asociada co Instituto de Ciencias do Espazo do CSIC.

@KathyReid theres a meme for that

Em fa ràbia que tanta gent a #Olot vulgui fer fora companys de feina i mares de l'Escola Bressol de la meva filla, per no haver nascut aquí.
Son els nostres amics i ara són catalanes com vosaltres.

A #Olot el que sobre són #racistes #classistes

Hi posarem el cos, l'ànima i tota l'energia per combatre la vostra xenofòbia.