The discovery of the first #exoplanets www.bbc.co.uk/sounds/play/...

“My big worry is that all this digital stuff won’t be there when we would like it to be there, or when our descendants would like to have it,” says Internet pioneer Vint Cerf. 🧪⚛️ ow.ly/s5qp50X00go

The Flame Nebula steals the spotlight in this image 🔥, but it’s not the only gem on display! You can also see the Horsehead Nebula (lower right), and the bright, bluish star to the right, which is one of the trio forming Orion's Belt. 🔭

-Style Pizza xkcd.com/3142/

Ever wonder what happened to that $100 million interstellar spaceship program? Me too. www.scientificamerican.com/article/the-...

NSF Astronomy & Astrophysics Postdoc Fellowship apps are OPEN! 🔭 However, app only appears on research.gov if your role "Proposed Postdoctoral Fellow"! Click "Proposals", "Prepare and Submit Proposals", then "Prepare New". If you do not see NSF 22-621, change role to "Proposed Postdoctoral Fellow"!

AAS Social Media Task Force The AAS is seeking members for a social media task force to strategically increase the Society's social media presence, including communicating the value of astronomy & science funding to the broader public and promoting advocacy actions. docs.google.com/forms/d/e/1F... 🔭

😲 Every patch of this image is a showstopper. 🤩 Every crop a beauty in and of itself. ICYMI, the NASA/ESA/CSA James #Webb Space Telescope captured this glittering glimpse of starbirth in the core of the nearby Lobster Nebula. 🔭 🧪

🔭 47 Tucanae: Globular Star Cluster Image Credit & Copyright: Carlos Taylor apod.nasa.gov/apod/ap25090...

#ThrowbackThursday: In 1980 the 🌍🌎🌏 was declared #smallpox free, thanks to mass vaccination efforts. Smallpox was an acute contagious disease caused by the variola virus. It was one of the most devastating diseases known to humanity. #VaccinesWork

astronomers discovered a quadruple star system: a brown dwarf dancing around another, locked in orbit with two brighter stars also circling each other 💫 the universe is so cool. www.nytimes.com/2025/08/25/s...

This is the 47 Tucanae Cluster, one of the most magnificent collections of stars in the southern hemisphere sky. Imaged last night from Melbourne Australia with an almost full moon - you can see the light pollution from the moon in the top right corner.

Light pollution is stealing our view of the stars ⭐ Protecting dark skies isn’t just for astronomers – it’s about preserving a universal right to see the cosmos. buff.ly/oTpsVCf

Mary K Gaillard, a theorist who had a knack for telling experimental physicists where to look, died in her home on May 23 at 86. Dr. Gaillard was an unpaid scientist at CERN for more than a decade, & the first woman physicist hired & tenured at Berkeley: www.nytimes.com/2025/07/31/s...

If you see this, post a #castle 🏰 Platamon Castle southeast of Mount Olympus in Macedonia, Greece. Built by the Crusaders between 1204 and 1222.

Karl G. Jansky - The Father of Radio Astronomy! 📡

It's official: A new interstellar object is currently flying through our solar system at 61 km/sec. Comet 3I/ATLAS, as it's now known, is only the 3rd known interstellar visitor, but the new Rubin Observatory is likely to find dozens more in the coming years. 🔭🧪 science.nasa.gov/solar-system...

Link to the paper: Anthony Mallama and Richard E. Cole (2025) arxiv.org/abs/2507.00107

Halictus ligatus sweat bee on an Echinacea flower.

Halictus ligatus sweat bee on an Echinacea flower.

The NSF NRAO invites scientists to participate in the Semester 2026A Call for Proposals: Very Large Array (VLA) Green Bank Telescope (GBT) Very Long Baseline Array (VLBA) High Sensitivity Array (HSA) Global mm VLBI Array (GMVA) Deadline: 30 July 2025 🔗 science.nrao.edu/observing/ca... #Astronomy

A brown-belted bumblebee feasting on milkweed nectar.

As Karen’s Doctoral thesis advisor, I’m delighted the news is finally out.

Anyway, speaking of physicists who actually are trying to make the case to the general public for why physics is worth funding, my latest @newscientist.com column is a love note to General Relativity and the Quantum Gravity Problem 😍 Ask your library if you're not a subscriber! 🧪🔭⚛️

Really cool opportunity for advanced grad students and postdocs to learn about and discuss multi-messenger astrophysics in beautiful Santa Cruz! (featuring yours truly)

NEW: The Crab Nebula—the result of a supernova in 1054—originally appeared as a bright, new star that was visible even in the daytime. Learn more about this storied supernova remnant on a poster of this observation from #NASAWebb: webbtelescope.pub/41VJ6rf 🔭 🧪

Here's a selection of illustrations I've created for science press releases over the years. Please repost for me! And if you need to commission this kind of work, check my background. I'm your man. #SciArt #spaceart

Astro job alert! 🚨🔭 @science.esa.int is hiring a Project Scientist for NASA's Roman mission, to join our ESA office here at @spacetelescope.bsky.social in Baltimore! Check out the job ad and please share with anyone who might be interested! jobs.esa.int/job/Baltimor...

The hardest part of creating a design? Posting it on social media, but anyway, here it is! Neutron stars are insanely dense,(teaspoon of neutron star would weight 4 billion tons on Earth). Some are pulsars, like beacons in space or/and magnetars! 🔭Store: kategraphiccreations.etsy.com #sciart

"The team predicts that the two neutron stars will spiral slowly toward each other in a cosmic dance, ultimately colliding in a kilonova explosion." Inspired by @skuthunur.bsky.social article & thanks to @astro-jje.bsky.social for patiently answering all my silly binary star questions! #Sciart

Jocelyn Bell and Anthony Hewish announced their discovery of a “rapidly pulsating radio source” — what we now refer to as a pulsar — with a paper in @nature.com #OTD in 1968. 🧪 🔭 ⚛️ www.nature.com/articles/217...

Please help us get the word out: our 6 wk astrophysics 🧪🔭summer research program for international MSc students is open for application! Note this is aimed at students from disadvantaged regions or under-represented groups in astro! I will host one position on black holes ⚫️! aspire.science.uva.nl

My latest for @newscientist.bsky.social is a response to a reader question about how we know that dark matter isn't just dust! It's a nice thing to take a break with, given everything else happening in our corner of the universe. Ask your library for access! www.newscientist.com/article/mg26...

Watching astronauts Suni Williams and Nick Hague work on repairs of our baby, X-Ray 🔭 NICER!! streaming live from space: www.youtube.com/live/RYPk8fz... 🧪

This is cool 😀 Astronauts are gonna repair the NICER X-ray telescope on the space station next week. This will be the first time a telescope has been repaired on orbit since Hubble in 2009! #nasa science.nasa.gov/missions/sta...

✨Special late night bonus thread✨ The image on the cover of the Joy Division album "Unknown Pleasures" is from a plot that radio astronomer Harold Craft made for his PhD dissertation, using data collected at Arecibo while studying the pulsar discovered by Jocelyn Bell Burnell. (13/12)

A reminder to 🔭 and ⚛️ sky, esp #cosmology and #particle #physics folks: I'm hiring a postdoc! In principle the application deadline is on Monday night, but if I know you're planning to apply, we can discuss a late application! Our dept is 🏳️‍🌈🏳️‍⚧️ populated & friendly! jobs.usnh.edu/postings/63459

Are you on the Postdoc market and excited about early science with @vrubinobs.bsky.social, especially time domain, solar system, near field cosmology, or SETI? Well check out the @dirac-institute.bsky.social fellowship position that just got posted! apply.interfolio.com/158267

In memory of my best performing tweet, I present to you turkey fight club 🦃 ⚔️

There’s more to rainbows than the human eye can see: here’s how a rainbow extends into the infrared and ultraviolet. Photos: 1. Infrared 2. Visible (obviously) 3. Ultraviolet, and 4. A composite showing how UV is beyond the violet in a rainbow, and IR beyond the red end. 🧪 #photography

Reminder that the UCSC Lamat Institute application deadline is early this year, December 1! Lamat is an outstanding program that offers research opportunities and professional development for undergrads, particularly community college students.

Physicist Lise Meitner was born #OTD in 1878. She discovered fission in uranium with Otto Frisch, and was the first person to understand both its mechanics and implications. A thread! (1/n) 🧪 🔭 👩‍🔬 Image: Atomic Heritage Foundation (photographer unknown)

While STROBE-X didn't get selected for NASA Probe-class we did get Category I rating from NASA (for an excellent overall proposal) and a low risk rating. Clearly, this could have been selected, and we made the case that a big X-ray timing mission is timely and practical. Proud of our team. 🔭

Some nice(r) coverage from Sky & Telescope of our latest results on neutron star interiors! skyandtelescope.org/astronomy-ne...

Roasted Long Island duck.

A Concorde waiting to be refurbished at the Brooklyn Navy Yard.

Pulsar timing astronomers - you like?! New tee arrived yesterday and it merges together two excellent pop culture pieces with some beautiful science. I call it: ‘The Gravitational Wave Background’ 🌊📡〰️〰️〰️〰️🔵 Can’t wait to wear this in summer just so I can talk about the GWB to randoms. 🔭🧪

The CCA is hiring two full-time research software engineers! Each position will have a focus on supporting a community software project (Astropy or MESA) along with other research and software projects that align with the interests of CCA researchers. Links to follow:

Baby cottontail alert 🐰