Miguel Alcubierre

The Science of Pi The number pi emerges from one of the simplest, most symmetric shapes, yet it gives rise to endless complexity. This Pi Day, find out about some of the fascinating places pi pops up and the burning qu...

Happy Pi Day!! Mark the occasion with some of our favorite stories about pi (and about pie), and share how you celebrate!

A spiral galaxy from the Galaxy Zoo: Hubble project, classified by 47 volunteers.

A spiral galaxy, observed with the Hubble Space Telescope in the COSMOS survey.

It is at redshift 0.38 (lookback time 4.26 billion years) with coordinates (150.63808, 2.06658).

47 volunteers classified this galaxy in Galaxy Zoo: Hubble.

No, particle physics colliders cannot ever destroy the Universe Smashing things together at unprecedented energies sounds dangerous. But it's nothing the Universe hasn't already seen, and survived.

No, particle physics colliders cannot ever destroy the Universe

Every time we push the energy frontier in particle physics, laypersons fear that the world, or even the Universe, will be destroyed.

Here's why we're certain it's all safe... for now.
bigthink.com/starts-with-...
#physics #astro

Ask Ethan: Can we see the expanding Universe changing? The Universe is expanding, the expansion is accelerating, and some galaxies even recede faster-than-light. Can we see a change in real time?

Can we see the expanding Universe changing?

#AskEthan

We've measured the expanding Universe by looking at many objects at different distances and with different redshifts.

Here's how we'll measure it directly: with just one object over time.

bigthink.com/starts-with-...
#space #astro #redshift

How Scientists Discovered the Staggering Complexity of Human Evolution Darwin would be delighted by the story his successors have revealed

Charles Darwin was born #OnThisDay in 1809. For all that his ideas became foundational science, he said remarkably little about humans--but as we have studied ourselves, we've discovered a remarkable evolutionary tale

Holy moly. Show this to anyone who says, "Wow, it's cold. So much for global warming!"

NASA's Day of Remembrance honors the brave astronauts who gave their lives in service to space exploration and the pursuit of knowledge.

The crews of Apollo 1, Challenger, and Columbia believed in something larger than themselves.

Yes, I am here!

yo no propuse ninguna tecnología. Propuse solo una posible geometría del espacio-tiempo. En la que yo propuse no hay dilatación del tiempo por construcción. Pero eso solo lo hice por simplicidad, no porque yo crea que sea realista en ningún sentido.

Luna de año nuevo en Valle de Bravo, México.

🌹 random rose 🌹
April 23rd 2024

A selfie of Kamala Harris and Douglas Emhoff on Christmas 2025.

From our family to yours, merry Christmas! We hope your day is filled with good people and good food.

Merry Christmas! Michelle and I hope you have a wonderful holiday filled with light and joy.

Read an extract from The Player of Games by Iain M. Banks The New Scientist Book Club is currently reading Iain M. Banks's classic sci-fi novel The Player of Games. In this extract, we meet protagonist Gurgeh for the first time

The New Scientist Book Club is currently reading Iain M. Banks's classic sci-fi novel The Player of Games. In this extract, we meet protagonist Gurgeh for the first time

Totally agree!

I get at least one of those every day now. Sometimes as much as 10 in a single weekend. And yes, many of them start by saying that they discussed their ideas with an AI and it validated them (of course). It is getting worse.

Más rápido que la luz | Dr. Miguel Alcubierre | TEDxUJED YouTube video by TEDx Talks

Charla en TEDx Durango!

@stedxujed
@wtcdurango
@tedx_official

www.youtube.com/watch?v=H8u2...

El premio Nobel de física este año va para el descubrimiento de efectos cuánticos en sistemas electrónicos macroscópicos. Es decir, que ciertos efectos cuánticos pueden aparecer en sistemas compuestos de millones de partículas a la vez, y no solo en sistemas de pocas partículas.

"For every 1,000 measles cases, there are between 1 and 3 deaths from breathing complications or brain swelling. If there are a million cases, that’s about 1,000 deaths that doctors consider preventable with the use of vaccines"

Also: about 200,000 hospitalized (1 in 5 cases in unvaccinated people)

A portrait of our planet and moon from across the solar system Psyche snaps Earth and Moon, I’m talking to teachers in Texas, and a newly discovered impact crater in India

I am such a sucker for pics of Earth and the Moon taken from deep space missions. This one from Psyche, when it was *290 million km* from our planet, really puts things in perspective.

Here's my take on it 👇

badastronomy.beehiiv.com/p/a-portrait...

🧪🔭

New Moon Discovered Orbiting Uranus Using NASA’s Webb Telescope - NASA Science Using NASA’s James Webb Space Telescope, a team led by the Southwest Research Institute (SwRI) has identified a previously unknown moon orbiting Uranus,

Hey cool, astronomers found a new moon of Uranus (steady there, jokesters) in JWST images of the planet!

science.nasa.gov/blogs/webb/2...

The Dirac equation in general relativity and the 3+1 formalism - General Relativity and Gravitation I present a review of the Dirac equation in general relativity. Although the generalization of the Dirac equation to a curved spacetime is well known, it is not usually part of the standard toolkit of...

Miguel Alcubierre. The Dirac equation in general relativity and the 3+1 formalism. #GenRelativGravit 57, 122 (2025). doi.org/10.1007/s107... #OpenAccess #ReviewArticle by
@miguelalcubierre.bsky.social

An incredible JWST image of an immense city of galaxies Abell S1063 is a jaw-dropping example of the power of the big telescope

I bet it's been a while since you've had your mind vaporized by a JWST image so here's one of a cluster of galaxies so immense it's visibly warping space.

Bonus: I explain what you're seeing! Because that's kinda my thing!

badastronomy.beehiiv.com/p/an-incredi...

🔭🧪

Entrevista Miguel Alcubierre: Enseñando Relatividad General a una Computadora. YouTube video by CUENTOS CUÁNTICOS

Una entrevista en profundidad con Miguel Alcubierre donde se discuten las tripas de la Relatividad General. Tal vez te sorprenda esta entrevista más allá de burbujas.

Gracias a @miguelalcubierre.bsky.social por su tiempo y por su forma de hablar de Física. Ha sido un placer.

youtu.be/TxyXJ_gnVMM

This is an article I wish I could've written, but halfway through it would've been laden with cursing and random letters as I pounded on my keyboard with my fists.

Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.

www.dropbox.com/scl/fi/hx3y3...

Albert Einstein en La Falda: homenaje a un siglo de su paso por el Edén Hotel

www.eldiariodecarlospaz.com.ar/sociedad/202...

Nebulosa de Orión. Tomada ayer con un Seestar S50 desde la Cd. de México.

This new NASA/ESA/CSA James Webb Space Telescope Picture of the Month features a rare cosmic phenomenon called an Einstein ring. What at first appears to be a single, strangely shaped galaxy is actually two galaxies that are separated by a large distance. The closer foreground galaxy sits at the center of the image, while the more distant background galaxy appears to be wrapped around the closer galaxy, forming a ring.

I look at a lot of space images, but this one made my eyes bug out like a cartoon character.

What you see here isn't a spiral galaxy, exactly. It's a spiral galaxy bent into a circle by the gravity of an elliptical galaxy at the center of the bullseye. Warped space! 🧪🔭

esawebb.org/images/potm2...