Diego González

Cruzar una calle en Nápoles por un paso de cebra es una odisea. "Tu cruza, ya pararán ellos"

Don’t let mega-constellation-building billionaires steal your night sky Satellites are wonders of modern technology that have improved all of our lives. But having more than a million of them in orbit could destroy our view of the heavens and seriously damage our planet

Elon Musk has already started plans to launch a million satellites.

Yes. A MILLION.

This is a colossally bad idea, and it's not too late to make your voice heard. I explain everything:

www.scientificamerican.com/article/ramp...

🔭 🧪

Dale, mucha suerte Olaya!! 💪

Ayuso recorta en 246 millones los fondos previstos para Ciencia tras su pacto con los rectores Las universidades han firmado aumentar la partida para pagar los sueldos y los gastos corrientes, mientras pierden fondos para hacer investigación

Había truco elpais.com/educacion/20...

#YardangsOrBust

SpaceX Aims to Launch 1 Million AI Data Center Satellites The satellites could ruin dark skies, pollute the atmosphere, and increase space debris — and the public has a limited time to comment.

Experts are concerned that the satellites could ruin dark skies, pollute the atmosphere, and worsen the space debris. The public has a limited time to comment.
skyandtelescope.org/astronomy-ne...

It is time we stop this madness. Just because you can, doesn't mean you should. We have to stop these billionaires ruining our planet.

🌋 Piton de la Fournaise – 17/02/2026

L’éruption se poursuit : une seule bouche active avec un cône en formation.

Front de coulée toujours figé à ~2,6 km de la RN2. Trémor globalement stable.

Sismicité sommitale persistante : système sous pression.

Alerte 2.1

Détails ici : tinyurl.com/rrdeu5se

Thin Section Thursday!
Ophitic texture of plagioclase laths encased in clinopyroxene in a gabbro from the Glen Mtns. Layered Complex in southwestern Oklahoma. Contributed by Robert Puckett. You can contribute too! Send images to akoziol1 at udayton dot edu. #thinsectionthursday

A massive hotspot — larger the Earth’s Lake Superior — can be seen just to the right of Io’s south pole in this annotated image taken by the JIRAM infrared imager aboard NASA’s Juno on Dec. 27, 2024, during the spacecraft’s flyby of the Jovian moon. Credit: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM

NASA's Juno spacecraft detected the largest volcanic hotspot ever seen in our solar system. It appeared on Jupiter's moon Io, it covers 100,000 square kilometers (bigger than Lake Superior), and it radiates 80 trillion watts of heat. 🧪🔭

www.jpl.nasa.gov/news/nasa-ju...

TIME’s new cover: Artemis II is poised for the first lunar mission since 1972

We’re proud to stand shoulder to shoulder with our international partners in Artemis. Our European Service Module is at the heart of NASA’s Orion spacecraft. Together, we're extending humankind’s presence in space and demonstrating that multilateral and inclusive cooperation is vital for our future.

Photo from USGS

Kilauea erupted again yesterday in a fierce display. In only the 2nd time in 40 years, park officials closed the area due to the intensity.

Fountains were officially recorded at 500 m high, grapefruit size tephra were being ejected, and tephra fall was measured up to 20 miles away.
#volcano #hawaii

Reminds me of this

Aquellas viejas webs - Jorge Ginés Hice mi primera web en los 90. Luego vinieron los foros y los blogs: Tal vez es hora de volver a ese internet más libre.

Unos pensamientos desordenados, si es que alguien le intersan

"Aquellas viejas webs"

www.jorgegines.com/aquellas-vie...

A rock under the petrographic microscope

A thinnie I made for fun. Yes, I now have this expensive bad habit.

#peridotite xenoliths in ocean island basalt #OIB from Canary Islands, Spain

#geology ⚒️

Screenshot from threads where a guy says we are going to announce the detection of aliens soon. I replied with scientific information dismissing the claims. He replies “we shall see. Hope I am right! I checked it with google AI”

1 PhD in planetary astro vs. a dude & his AI 🥴

Today's view of Etna with recent lava flow.

Image taken by Sentinel-2.

Polaris is not always the North Star. Due to Earth's precession, over the course of 26,000 years, Polaris, Alderamin, Vega, and Thuban take turns as the closest prominent star to the celestial pole.

🔴 URGENTE: La Comunidad de Madrid suspende las ayudas predoctorales 2025

📌 Exigimos: convocatoria 2025 ya, mantener la inversión y una mesa de diálogo urgente.

🧵 Breve hilo detallando la situación en conjunto con las seis universidades públicas de la región.

La más firme condena al ataque unilateral en territorio venezolano. Es una intervención ilegal que vulnera la carta de las Naciones Unidas.

Con el derecho internacional, la paz y la seguridad.

Three panel cartoon by Tina Menzel A cat sitting on a table next to a big sign that says 2025 Cat looks down at 2025 Cat pushes 2025 off the table

The volcanic Jupiter's world Io showing off Pele, Loki and Pillan Patera. Special thanks to the SHARK-VIS Team for sharing these data with me so that I could make my own processing! Meet them here sites.google.com/inaf.it/shark-vis/team Download full size: www.flickr.com/photos/192271236@N03/53775789129/sizes/o/ See license below. Credit Processing: Andrea Luck CC BY Image data: INAF/Large Binocular Telescope Observatory/Georgia State University; IRV-band observations by SHARK-VIS@LBT [P.I. F. Pedichini] North is approx up Time: January 9, 2024 Filters: I 685-825 nm R 552-687 nm V 495-605 nm Study and more info: agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL108609 Credit Processing: Andrea Luck CC BY Image data: INAF/Large Binocular Telescope Observatory/Georgia State University; IRV-band observations by SHARK-VIS@LBT [P.I. F. Pedichini] Feel free to share, giving the appropriate credit and providing a link to the original image or tweet: creativecommons.org/licenses/by/4.0/deed.en

Io as seen from Earth! - Large Binocular Telescope Observatory - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2pVYYA6

See that bright, glowing object with a tail?

That's not a comet.

That's the planet Mercury.

Lessons and Lingering Questions from Collapsing Basaltic Calderas - Eos Research into the hazardous collapses of basaltic volcanoes has revealed common physical processes, but addressing remaining questions requires learning more from historical events.

Caldera-forming volcanic eruptions can produce some of Earth’s most hazardous natural phenomena, but they remain enigmatic despite decades of study.

A wide view of the planet Mars fills the frame, shown as a curved, rust-colored world against black space. The bottom edge fades into darkness, marking the planet’s night side, while the upper portion is brightly lit by sunlight. Near the right side are three large, round volcanic mountains of the Tharsis region, each with a wide circular base and a darker central caldera, resembling shallow craters pressed into the surface. North of these volcanoes, stretching almost vertically across the upper right half of the planet, lies Noctis Labyrinthus and Valles Marineris: an immense system of deep canyons and fractured terrain that appears as pale, branching scars and cracks, partly softened by hazy, cloud-like atmospheric features. Near the center of the image, positioned between the volcanoes and the canyon system, a small dark oval appears against Mars’s surface. This is Phobos, one of Mars’s satellites. Its tiny size stands out sharply against the vast scale of the planet below.

1/n

2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express

This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris

Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭

Job alert: #PhD position/ Research Staff in the field of petrology, geochemistry & deep learning, Institute of Earth System Sciences, Leibniz University Hannover (DE). Apply by 1 March 2026. More info: buff.ly/GEtpyAG

Scientists skip key US meetings — and seize on smaller alternatives Researchers are devising creative ways to get together as Trump’s policies curb travel to US gatherings.

Attendance at US-based science conferences is bouncing around this year but generally down. #AGU25 has ~10k fewer this year! I explored these trends for @nature.com — including solutions to keep conferences local & productive:

www.nature.com/articles/d41...

🧪

Impresionante la imagen -tomada hoy- 🛰️❄️ que nos ofrece el satélite Sentinel-2 del programa Copernicus de la UE 🇪🇺, mostrándonos las últimas nevadas sobre el Teide 🏔️✨

Someone asked me if the footage of 1,000ft lava fountains on Kīlauea was AI.

PLANET EARTH IS INFINITELY SUPERIOR TO ANYTHING THAT SOULLESS ENVIRONMENT-KILLER COULD EVER CONJURE FROM PILLAGING REAL ART.

Ahem. No, it's not AI. Volcanoes are just that incredible.

A ring of light around Earth, with a bright spot of light at lower right as the Sun peaks out from just behind our planet.

A total solar eclipse.

By Earth.

Taken from the Moon in March this year.