Enjoy some John Batiste performing at Columbia commencement.

Enjoy some John Batiste performing at Columbia commencement.

Less of the night sky is visible than ever before NASA's Black Marble project measures artificial lighting at night. From 2014-2022, things got 34% brighter. And now over 80% of humanity can't even see the Milky Way at night. bigthink.com/starts-with-... #space #astro #nightsky #nasa

ArXiv is going to ban researchers for a year if they are caught submitting AI slop. ArXiv told us it's a one strike rule: do it once, you're out. www.404media.co/new-arxiv-ru...

We are implementing a similar policy at @arxiv.bsky.social. If there is incontrovertible evidence of LLM slop in a paper, this means the authors did not take the time to read the LLM output and we can't trust anything else in the paper. Penalty is 1 year ban from arXiv followed by...

wow — the preprint host, arxiv, is banning authors for a year if they submit papers with hallucinated citations 🤖

In a historic moment, I was interviewed by fellow Black woman particle physicist Dr. Katrina Miller. Few people can understand my journey the way she does. We talked about my new book, why poetry matters, and yes, how the *fact* of non-trinary neutrinos challenges anti-trans rhetoric. #GiftLink

Happy birthday to astrophysicist Cecilia Payne-Gaposchkin (1900-1979), a trailblazer for women in #astronomy who discovered that hydrogen and helium are the most common elements in the universe.⁠ 🔭🧪🐡👩🏼‍🔬🎢 #histsci Born England, she won a scholarship to Newnham College at Cambridge in 1919

Am I wrong though?

Martin Weisskopf, who helped shape modern X-ray astronomy and was the Chandra Project Scientist for many years, died last week at the age of 84. In lieu of flowers, the family asks that people write letters of support to sustain the mission. www.berryhillfh.com/obituaries/m...

We have an *extremely* important announcement to make. From Wednesday, we will be launching our puffin live cam, coming to you from the Farne Islands. So you can watch puffins all day long. In celebration, please enjoy this clip of puffins being really busy for 39 seconds straight.

🔭 Comet R3 PanSTARRS Behind Satellite Trails Image Credit & Copyright: Uli Fehr ap260427

#OTD 93 years ago 📡 An engineer named Karl Jansky gave a 12-min presentation at the US National Committee for the International Union for Radio Science to a small group of people. It marked a significant turning point in our understanding of the Universe. #RadioAstronomy 📸 NRAO/AUI/NSF

Well, isn’t this a sight for sore eyes! 😍 Our beloved Hubble appears in this amazing image from one of Vantor's WorldView Legion satellites. It was 36 years ago today that Hubble was launched in the bay of the Space Shuttle Discovery from NASA’s Kennedy Space Center. Credit: Vantor.

In 2020 PT worked with a data visualization artist to map the first 30 years of Hubble's scientific observations and her final product was great. But I still have a soft spot for the video I made before we hired her that shows all of the observations each year.

Last month, scientists at CERN led by RIKEN's Stefan Ulmer did what?? Antimatter on a truck? #Science #Physics #Antimatter #ParticlePhysics 🧪 ⚛️

Quark-gluon

Reminder: we are hiring a Research Software Engineer @flatironinstitute.org !

From Tori Bonidie and Skylar Grayson: The president’s budget requests for NASA and the NSF were released last week. We summarizes the major cuts and their impacts while providing resources to help fight back against this attack on science. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/16/budget-request-fy2027/

From @jaydewst.bsky.social: Ever been confused by a plot online or in a paper? This post decodes the secret language of astrophysics plots so you can finally read the universe like a pro. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/17/secrets-of-plots-in-astro/

"With so much data, there will be scientific breakthroughs about the nature of the universe, says Lahav, but we have also probably caught unusual one-off cosmological incidents that lead to exciting research." www.newscientist.com/article/2520...

Astronomers have discovered two supermassive black holes that seem headed for an imminent collision. These two black holes are so close that they could merge in just 100 years. And their radiation & jets changed dramatically over the course of a few days. 🧪🔭 www.mpifr-bonn.mpg.de/pressrelease...

Nice new (peer-reviewed) analysis of the impact of satellite constellations on ground-based astronomical observations. By Olivier Hainault from @eso.org 🔭https://arxiv.org/abs/2604.09427

Experts found that the White House budget request for the upcoming fiscal year could defund 54 NASA science missions, including a spacecraft currently studying Jupiter and two planned Venus missions: www.scientificamerican.com/article/whit...

The Center for Computational Astrophysics @flatironinstitute.org is hiring a new Research Software Engineer to work on @astropy.org and to support the software and computing efforts within the CCA. Apply by May 22! apply.interfolio.com/184639 🔭 🧪 ☄️

Multiple PhD projects in New Zealand to work on Rubin/LISA science and statistics 🔭, 🧪 - open now! #astro #cosmo www.gravity.ac.nz/join/phd-opp...

So pleased to have this new essay up @lithub.com.web.brid.gy! I noticed that my new book The Edge of Space-Time is one of a few that is concerned specifically with how metaphor shapes our world. So I wrote about why we are thinking about that in this political moment! 💙📚

I am currently touring the United States!!! Come see me and an amazing array of conversation partners talk about The Edge of Space-Time! bsky.app/profile/chan...

The Astronomer's Telegram is now sending browser notifications, to desktops and mobile phone browsers. We're using HTML5, so you won't need to download any app. You must be logged in to access them. After logging in, select "Enable Notifications" at the top of the page.

In 1991, a subatomic particle traveling *just* under the speed of light — and I do mean "just" — slammed into Earth's atmosphere with the energy of a major league basebal pitch! But... where did it come from? And how? A thing I wrote: www.scientificamerican.com/article/wher... 🔭 🧪

The President's Budget Request proposes a 47% cut to NASA Science, a 55% cut to NSF, and a 13% cut to the DOE Office of Science. AAS President Dr. Dara Norman sent a call to action to AAS members via email today. Urge your members of Congress to reject these cuts now! aas.org/reject-2027-...

"You look amazing, you look beautiful," Artemis II pilot Victor Glover, the first Black man to journey around the moon, said about seeing us from afar. www.nytimes.com/2026/04/03/s...

😮 Awesome views from Day 2 of #Artemis II this morning. @exploration.esa.int @esaearth.esa.int

Introducing over 11,000 new members of the Solar System...and our main survey hasn't quite started yet! ☄️ Using pre-survey observations from 2025, NSF–DOE Rubin Observatory scientists have reported more than 11,000 new asteroids and comets! 🔭🧪 🔗: rubinobservatory.org/news/11000-n...

The CDC has paused testing for rabies and pox viruses. It's vital we keep a close eye on them as rabies is virtually 100% fatal without vaccination, and smallpox killed hundreds of millions (we really don't want a similar virus returning). Losing track of these viruses is a recipe for catastrophe.

🔴 LIVE NOW: the first launch opportunity for #Artemis II and Orion, powered by its European Service Module, is tonight 23:24 BST/00:24 CEST 2 April. 📺 Live on watch.esa.int/Two/ @exploration.esa.int

Please spread the word! In addition to becoming an important part of the MESA project, the person in this role would have opportunities to collaborate on scientific software across CCA, which has a vibrant, interactive community of scientists and code developers.

Hundreds of millions of people live close enough to data centres used to power AI to feel warmer average temperatures in their local area

Happy birthday to Wilhem Röntgen (1845-1923), the German physicist who discovered x-rays and earned the Nobel Prize for physics in 1901. 🎢🐡🧪 #histsci I’ve depicted him in this thermochromic portrait at work, studying this mysterious, newly discovered, invisible form of light, based on a photo of 🧵

Halfway Through the Fiscal Year, NIH Has Only Obligated 15% of Research Funding The science community fears the funding agency’s slow contract and grant making could result in another rush of multiyear obligations at the end of the fiscal year. https://bit.ly/4btAe2c #EDUSky #HigherEd #AcademicSky

The globular cluster M53 in Coma Berenices. #astronomy #astrophotography

Physicists have succeeded for the first time in transporting the most expensive and most volatile substance on Earth — antimatter - in a truck go.nature.com/4v49mxA

Very nice to see this paper, on dense matter Equation of State informed pulse profile modelling of neutron stars - led by Mariska Hoogkamer and Nathan Rutherford - published as an Editors' Suggestion in Physical Review D. #highenergyastro 🔭⚛️🧪 journals.aps.org/prd/abstract...

Watch as the Crab Nebula changes over time with Hubble. Two images, taken 25 years apart, show the ongoing expansion of a supernova remnant: https://news.stsci.edu/4bAN6m4 🔭

If you want an accessible book that introduces the cosmos through visual art, check out Painting the Cosmos by Nia Imara, an astronomer at UC Santa Cruz. All the images are in color! 🔭🧪 #BookSky #BlackInAstro www.simonandschuster.com/books/Painti...

What's the value of having telescopes in space? Seeing change over human time scales. Plus the Crab Nebula is gorgeous. Latest from Hubble. science.nasa.gov/missions/hub...

I wrote a thing! Rubin and LSST are not only going to find a kajillion asteroids, they'll get lightcurves and colors at the same time, and the science is going to be phenomenal skyandtelescope.org/astronomy-ne...

Now on ArXiv: we may have detected atomic absorption features due to highly ionized oxygen and neon from the surface of the neutron star RX J0822-4300 in the supernova remnant Puppis A. arxiv.org/abs/2603.14146

Fun!! 🔭