@maxisi

Gravitational-wave Astronomer. Assistant Professor @Columbia | Associate Research Scientist @SimonsFdn. (Tweets English & Español)

 New York, NY
maxisi.github.io
Joined July 2009
  • Tweets1.8K
  • Following569
  • Followers1.5K
173Media
Maximiliano Isi retweeted
Caltech@Caltech10 Oct 2025
A collaboration between physicists at Caltech and other institutions has released an expanded and refined catalog of simulations of black hole mergers. caltech.edu/about/news/catal…

Catalog of Simulations of Black Hole Collisions Expands

A collaboration between physicists at Caltech and other institutions has released an expanded and refined catalog of simulations of black hole mergers.

caltech.edu
5
2
6
15
2,049
Come see Kip Thorne’s talk Monday afternoon at @Yale !
6
9
2
94
12,153
Maximiliano Isi retweeted
Maximiliano Isi@maxisi10 Sep 2025
Hoy presentamos la señal más clara de una colisión de agujeros negros. Las ondas gravitacionales detectadas por @LIGO nos permiten poner a prueba nuestro entendimiento de los agujeros negros y el espacio-tiempo curvo, según Einstein y Hawking. Solo es posible gracias a la mejora de nuestros instrumentos en los 10 años desde nuestra primera detección! Imagen: L. Reading-Ikkanda/M. Isi/Simons Foundation #GW2501014 #OndasGravitacionales #Einstein #Hawking #LIGO
4
1
10
1,257
One month left to apply for a postdoc position at #FlatironCCA! Applications due 10/31: apply.interfolio.com/173403 #science #astrophysics
dark blue background with the words "now hiring!"

ALT dark blue background with the words "now hiring!"

4
6
1,455
Thanks to improved technology and a bit of luck, a newly detected black hole merger is providing the clearest evidence yet of how black holes work: simonsfoundation.org/2025/09… #science #astrophysics
Clear Signal Sheds Light on Black Holes infographic

ALT Clear Signal Sheds Light on Black Holes infographic

2
7
1,217
Almost 10 years after the first detection of gravitational waves, physicists have announced the strongest such signal yet. Produced when two black holes in a distant galaxy spiraled into each other, the merger enabled researchers to test Albert Einstein’s theory of gravity, general relativity, in new ways. In particular, analysis of the event confirmed a theorem derived by Stephen Hawking that a black hole’s surface area can only grow and never shrink: scim.ag/3KaSCBE
3
8
28
5,004
Maximiliano Isi retweeted
Maximiliano Isi@maxisi10 Sep 2025
Meet GW250114, a landmark detection of gravitational waves that gives us an unprecedented view of the nature of black holes and the nature of space and time, as predicted by Einstein, Hawking and many others. journals.aps.org/prl/abstrac…

GW250114: Testing Hawking's Area Law and the Kerr Nature of Black Holes

Using a very strong black-hole merger signal, the LIGO-Virgo-KAGRA Collaboration has shown Hawking's area law to hold with high credibility.

journals.aps.org
1
4
9
1,067
Maximiliano Isi retweeted
Simons Foundation
@SimonsFdn17 Sep 2025
#FlatironCCA astrophysicist Maximiliano Isi and colleagues have used measurements from @LIGO to reveal insights into the properties of black holes and the fundamental nature of space-time, hinting at how quantum physics and Einstein’s general relativity fit together: simonsfoundation.org/2025/09… @FlatironInst #science #astrophysics
quote from Maximiliano Isi: “With this new detection, we have an exquisitely detailed view of the signal both before and after the black hole merger.”

ALT quote from Maximiliano Isi: “With this new detection, we have an exquisitely detailed view of the signal both before and after the black hole merger.”

1
3
4
1,143
“That’s such a fundamental, pure theorem of general relativity that to see it verified is really fantastic.” scim.ag/3VFnX1Q

Strongest black hole collision yet confirms theories of Einstein, Hawking

Observation confirms that a black hole’s area can only grow and never shrink

science.org
1
6
2
21
3,972
Our Center for Computational Astrophysics is #hiring postdocs! Come undertake independent research in areas that have strong synergy with #FlatironCCA or our other computational centers. Apply by 10/31: apply.interfolio.com/173403 #science #astrophysics
Blue image that reads "Now hiring!"

ALT Blue image that reads "Now hiring!"

3
5
1,133
Maximiliano Isi retweeted
Maximiliano Isi@maxisi13 Sep 2025
What a difference 10 years makes! I am thrilled that @LIGO's GW250114 will be featured on the cover of the @PhysRevLett just like GW150914, our first gravitational-wave signal, in 2016. You can see the detectors' improvement by eye: notice how much clearer the signal on the right is! #GW10Years #BlackHole #GravitationalWaves #GW250114
7
31
1,057
“That’s such a fundamental, pure theorem of general relativity that to see it verified is really fantastic.” scim.ag/3VFnX1Q

Strongest black hole collision yet confirms theories of Einstein, Hawking

Observation confirms that a black hole’s area can only grow and never shrink

science.org
4
12
3,347
Maximiliano Isi retweeted
LIGO@LIGO11 Sep 2025
Replying to @LIGO @PhysRevLett @ego_virgo @KAGRA_PR
"Strongest black hole collision yet confirms theories of Einstein, Hawking" @hadriancho of @NewsfromScience writes about our discovery of #GW250114 science.org/content/article/… #O4IsHere #EinsteinWasRight #HawkingWasRight #KerrWasRight 🔭🧪⚛️☄️
A comparison of GW250114 with our first detection GW150914. The stretching of space in the new black hole merger (top) is similar to that in the first one ever spotted (bottom), but because of reductions in the noise in the detectors, the signal stands out far more clearly. Graphic by C. Bickel/Science. Data from us

ALT A comparison of GW250114 with our first detection GW150914. The stretching of space in the new black hole merger (top) is similar to that in the first one ever spotted (bottom), but because of reductions in the noise in the detectors, the signal stands out far more clearly. Graphic by C. Bickel/Science. Data from us

3
7
34
3,624
Notable participación de la delegación uruguaya en la XVII Olimpíada Latinoamericana de Astronomía y Astronáutica, en Barra do Piraí- Río de Janeiro, Brasil. La delegación obtuvo dos menciones de honor, dos medallas de bronce y una medalla de plata. ¡Felicitaciones!
11
1
31
1,266
Maximiliano Isi retweeted
Science News
@ScienceNews11 Sep 2025
Newly reported gravitational waves rang out as clear as a bell. sciencenews.org/article/ring…

A ‘ringing’ black hole matches scientists’ predictions

Gravitational waves emitted after two black holes coalesced agree with theories from physicists Stephen Hawking and Roy Kerr.

sciencenews.org
7
13
2
45
19,514
Ten years after scientists first detected gravitational waves emerging from two colliding black holes, a research team that includes @Columbia professor Maximiliano Isi, has recorded a new signal that confirms two important predictions. news.columbia.edu/news/unpre…

An Unprecedented View of Merging Black Holes

New views of two colliding black holes confirm predictions made by Stephen Hawking using Albert Einstein’s theory.

news.columbia.edu
1
2
161
Maximiliano Isi retweeted
Janna Levin
@JannaLevin10 Sep 2025
Happy Birthday, LIGO. Now Drop Dead. nytimes.com/2025/09/10/scien… via @NYTimes

Happy Birthday, LIGO. Now Drop Dead. (Published 2025)

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology hasn’t been the same since, and it might not stay that way much longer.

nytimes.com
3
1
1
14
2,010
Maximiliano Isi retweeted
OzGrav@ARC_OzGRav10 Sep 2025
Ten years ago, we heard the universe for the first time. Now, we’ve heard it again... only louder. OzGrav researchers, Neil Lu, PhD student at the Australian National University (ANU), and Teagan Clarke, PhD student at Monash University, explain!
1
2
2
374
A new study in @PhysRevLett analyzes #GravitationalWaves from GW250114, a black hole merger spotted by @LIGO earlier this year, and provides the most precise confirmation yet for a #BlackHole theorem by #StephenHawking. ⚫ Read the paper: go.aps.org/4n7hXuT 📷 Aurore Simonnet (SSU/EdEon)/LVK/URI
An artist’s rendering of GW250114, a collision between two black holes observed in gravitational waves by LIGO. It depicts the view from one of the black holes as it spirals toward its partner, with a swirl of yellow, green, blue, and purple streaks along the spiral’s path.

ALT An artist’s rendering of GW250114, a collision between two black holes observed in gravitational waves by LIGO. It depicts the view from one of the black holes as it spirals toward its partner, with a swirl of yellow, green, blue, and purple streaks along the spiral’s path.

11
47
1
157
14,546
So fun to write about GW250114 for @PhysicsMagazine! We now have definitive proof that the surface areas of black holes increase, even when they merge (notwithstanding evaporation but that's another story.. ) Enjoy a quick read on this new result! physics.aps.org/articles/v18…

Landmark Black Hole Test Marks Decade of Gravitational-Wave Discoveries

The clearest black hole merger signal ever measured has allowed researchers to test the Kerr nature of black holes and validate Stephen Hawking’s black hole area theorem.

physics.aps.org
10
51
5
228
9,283
Load more