David GaladíEnríquez 🐀 @DGaladi@red.niboe.info

24 hours of Earth's rotation, with the camera locked to the sky instead of the ground. We're all hanging out on this spinning rock.
Brilliant video by Bartosz Wojczyński. https://artuniverse.eu/gallery/190705-rotation24h #nature #wonder #earth

Five incredible craters that will make you fall in love with the grandeur of our solar system https://phys.org/news/2023-06-incredible-craters-fall-grandeur-solar.html

Owen Jay Gingerich, 1930–2023. By Daniel W. E. Green - Sky & Telescope https://skyandtelescope.org/astronomy-news/owen-jay-gingerich-1930-2023/

«Owen Jay Gingerich, well-known historian of astronomy and contributor to Sky & Telescope for more than half a century, died on May 28, 2023».

#Astronomy #History

AAVSO finder chart for the field of #supernova #2023ixf in #M101, plotted with a 1º field of view and a limiting magnitude of 14. Comparison star magnitudes are shown without decimal points, so, e.g., "119" = magnitude +11.9.

#astronomy

Oh, wow...

#Titanic: First ever full-sized scans reveal wreck as never seen before, from 700,000 images captured by submersibles.

https://www.bbc.co.uk/news/science-environment-65602182

#news #ocean

Welcome to this month's look at #Starlink conjunction risk mitigation manoeuvres. Through 30 April 2023, I estimate that Starlink satellites have made a total of > 45,000 manoeuvres to mitigate the risk of colliding with other space objects. The number of manoeuvres is growing exponentially (see later in the thread) because the number of Starlink satellites in orbit is increasing and the number of other objects in orbit is increasing [1/n]

For my chemistry friends out there - today's #t-shirt.

This morning I presented our concept for a future nighttime lights satellite called #EULE as a candidate for the European Space Agency's "Earth Explorer 12" call.

#EE12StartedHere

Hoy @pampa habla de que las gentes de ciencia son personas, aunque se las suela endiosar... "No son seres de luz, solo hacen ciencia". Cuánta razón llevas, Pampa, el periodismo científico es necesariamente crítico, especialmente cuando hay materia para ello (guiño guiño)
https://www.eldiario.es/sociedad/no-son-seres-luz-ciencia_129_10175674.html
En @eldiarioes

Estrella Gutiérrez, portavoz de la AEMET, sobre el acoso que viven por contar la crisis climática: “Nunca habíamos recibido estos insultos, ya nos llegan hasta por teléfono” https://www.eldiario.es/1_9aff32

En #Alemania han sacado un abono de transporte mensual por 49€ que puedes usar en trenes, metros, autobuses...De todo el país.
Han vendido 3 millones de abonos.
Con esto sí acabas con el coche particular, no subvencionando coches eléctricos a gente que puede pagar 50.000 por un #Tesla.

Para sorpresa de nadie:

SpaceX Starship Grounded Indefinitely By FAA - FLYING Magazine https://www.flyingmag.com/spacex-starship-grounded-indefinitely-by-faa/

"The model produces a simple expression for the maximum quantity of #satellites to prevent the #KesslerSyndrome, depending on a combination of parameters. Given the baseline calibration of the model, the estimated aggregate threshold value for the quantity of satellites is about 72,000."

https://www.sciencedirect.com/science/article/pii/S0921800923000940