Víctor R. Ruiz's Avatar

Víctor R. Ruiz

@rvr

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14.09.2023
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Latest posts by Víctor R. Ruiz @rvr

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A Plan B for space? On the risks of concentrating national space power in private hands What does it mean for national security if access to Earth’s orbit depends largely on one company?

Interesting arguments for and against the privatization of space: theconversation.com/a-plan-b-for...

09.03.2026 00:08 👍 1 🔁 1 💬 0 📌 0
A photo of a tablet screen showing a live image with lots of stars and some text

A photo of a tablet screen showing a live image with lots of stars and some text

#pov
☄️🔭

08.03.2026 19:58 👍 2 🔁 1 💬 0 📌 0
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Firefall, Yosemite 2/2025
Horsetail Falls, illuminated by the setting sun for a couple of weeks each February….

#flowing #blueskyartshow #nikon #yosemite #landscape #landscapephotography

07.03.2026 14:54 👍 11487 🔁 1400 💬 185 📌 49

Qué chulo.

08.03.2026 15:46 👍 0 🔁 0 💬 0 📌 0
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Cristal hexagonal de apatito procedente de las minas de Panasqueira en Portugal, al iluminarlo con luz UV de 310 nm exhibe fluorescencia en amarillo.

08.03.2026 10:43 👍 3 🔁 1 💬 1 📌 0
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In support of stand up for science here is an image of galaxy M51. Beautiful night. Clear and no moon

08.03.2026 05:19 👍 6144 🔁 733 💬 100 📌 16

I like hard sci-fi too. Would love recommendations from others. Given that I love Kim Stanley-Robinson's Red/Green/Blue Mars series, I really enjoyed 'The Terraformers' by Annalee Newitz recently. I've been pressing @aptshadow.bsky.social's Children of Time on everyone for years, too.

08.03.2026 15:18 👍 30 🔁 5 💬 21 📌 1

Instead of WW3, why don't we call it the Global Special Military Operations?

07.03.2026 19:38 👍 1093 🔁 204 💬 36 📌 12
Caitlin KALINOWSKI over X

I resigned from OpenAl. I care deeply about the Robotics team and the work we built together.
This wasn't an easy call. Al has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got. This was about principle, not people. I have deep respect for Sam and the team, and I'm proud of what we built together.

Caitlin KALINOWSKI over X I resigned from OpenAl. I care deeply about the Robotics team and the work we built together. This wasn't an easy call. Al has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got. This was about principle, not people. I have deep respect for Sam and the team, and I'm proud of what we built together.

OpenAI head of robotics just resigned over company deal with the Pentagon saying…

“Surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got”

07.03.2026 19:05 👍 7081 🔁 2643 💬 141 📌 211

Me mata ese principio de incertidumbre. Por desgracia, buena parte de las notas de prensa científicas son así :(

07.03.2026 00:23 👍 0 🔁 0 💬 0 📌 0
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GitHub - ppp-one/astra: Astra: an open-source observatory control software. Astra: an open-source observatory control software. - ppp-one/astra

🔭 Astra (Automated Survey observaTory Robotised with Alpaca) is an open-source observatory control software for automating and managing robotic observatories. It integrates seamlessly with ASCOM Alpaca for hardware control.

#astronomy #science #opensource
github.com/ppp-one/astra

06.03.2026 22:18 👍 2 🔁 1 💬 0 📌 0

Add Tucker Carlson and friends to the list.

07.03.2026 00:12 👍 0 🔁 0 💬 0 📌 0

So let me get this straight ...

1. US bombs Iran
2. Oil price goes up a bit, benefitting Russia's petrostate
3. Russia gives Iran targeting info
4. Oil price shoots WAY up
5. US unsanctions Russian oil

06.03.2026 22:10 👍 4680 🔁 1778 💬 205 📌 125
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Another week, another #PublicDomainFriday!

"Leonid Meteor Shower over Niagara Falls" by Anonymous, 1892, National Digital Library of Poland.

06.03.2026 19:19 👍 15 🔁 5 💬 0 📌 0

Buen análisis pero hay que entender que Trump es el Mulo: su objetivo no es la estabilidad, es el caos.

06.03.2026 19:33 👍 1 🔁 0 💬 0 📌 0
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Stacked! The Vega-C rocket that will launch @science.esa.int's aurora-watching Smile satellite is being built up at Europe's Spaceport.
Stage 1...2...3... and 4 are on the launch pad.

06.03.2026 16:29 👍 24 🔁 2 💬 0 📌 1

🔭 Follow the AAS Press Office account and stay up to date on astronomy news and press releases! 👉
@press.aas.org

06.03.2026 16:31 👍 5 🔁 1 💬 0 📌 0
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Meanwhile, Spain's massive investment in renewables is paying dividends now: with prices for Spanish industry and consumers low and stable compared with other European economies.

www.ft.com/content/ac77...

06.03.2026 16:39 👍 1135 🔁 507 💬 18 📌 54
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Jupiter with three moons visible. Europa on the left and Io and Ganymede on the right.
Celestron C6. ASI585 MC

#astronomy #astrophotography

05.03.2026 19:15 👍 121 🔁 28 💬 5 📌 2
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OPPORTUNITY: The Space Telescope Science Institute in Baltimore, MD, is searching for a Senior Data Platform Engineer to help manage the backend data pipelines, and ensure high-performance, reliable data access for our advanced astronomical public data archive: https://bit.ly/3N0T1sg

05.03.2026 19:03 👍 23 🔁 4 💬 0 📌 0
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Asteroid 2024 YR4 will not impact the Moon Last year, an approximately 60 metre near-Earth object captured global attention. For a brief period, asteroid 2024 YR4 became the most dangerous asteroid discovered in the last 20 years. While an Ear...

Acabamos de publicar que, gracias a las medidas que hemos obtenido de 2024 YR4 con el JWST, hemos determinado que el asteroide NO impactará contra la Luna en 2032.

www.esa.int/Space_Safety...

05.03.2026 16:04 👍 4 🔁 3 💬 0 📌 0
How to track a spy satellite |Euronews Tech Talks
How to track a spy satellite |Euronews Tech Talks YouTube video by euronews

3/x
...and also on youtube:
www.youtube.com/watch?v=LtF8...

05.03.2026 09:35 👍 3 🔁 1 💬 0 📌 0

Jo, qué pena. Descartado el posible impacto de asteroide en la Luna.

05.03.2026 17:13 👍 3 🔁 0 💬 0 📌 0
Ep548. Coffee Break: Señal y Ruido en Directo
Ep548. Coffee Break: Señal y Ruido en Directo YouTube video by Coffee Break Podcast

En apenas unas horas, a las 16:00 de España peninsular, grabaremos en directo el episodio 548 de la tertulia científica Coffee break: señal y ruido. @pcoffeebreak.bsky.social

¿Te unes y conversas con nosotros y otros cientófilos en el chat de YouTube?

05.03.2026 11:39 👍 7 🔁 2 💬 0 📌 0

📢 El concurso #Inspiraciencia amplía el plazo para enviar relatos científicos o piezas de danza inspiradas en la ciencia.

🗓️Hasta el 24 de marzo

Más info➡️ inspiraciencia.es

05.03.2026 07:27 👍 7 🔁 5 💬 0 📌 0

¡Puños fuera!

04.03.2026 09:18 👍 4 🔁 0 💬 0 📌 0
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It’s here and it’s spectacular. #ProjectHailMary

03.03.2026 23:10 👍 24 🔁 3 💬 2 📌 0

Again: Not hyperbole, misinterpretation, or a joke that Christian Dominionism is a strain of apocalyptic accelerationism which VERY LITERALLY SEEKS to hasten their vision of the Biblical end of the world, & the people who believe this have VERY CAREFULLY worked their way into the halls of U.S. power

03.03.2026 22:07 👍 1525 🔁 685 💬 36 📌 46
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This is the Blood Moon again, but this time 30 6-second images stacked. I think it might have gained a little bit in detail, but I might like the color better on the first one. #Astronomy #Astrophotography

03.03.2026 13:55 👍 64 🔁 12 💬 1 📌 0
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Telescopios inteligentes YouTube video by Agrupación Astronómica de Madrid

Nuestra #CharlaDelMartes comienza en un par de horas.
Jesús Martínez (AAM) y Ramón Naves (Aster) nos van a hablar sobre telescopios inteligentes comerciales.🔭

Se puede seguir en vivo en la sede de la AAM, o a través de nuestro canal, a partir de las 19:30 CET

www.youtube.com/live/KRwAswR...

03.03.2026 16:24 👍 3 🔁 2 💬 0 📌 1