From @kelsie137.bsky.social: Another day, another interesting LIGO-Virgo-KAGRA detection! Find out why the extreme parameters of GW231123 create problems for gravitational wave modelers and may have new information about black hole formation! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/18/a-clash-of-two-titans/

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/

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 Nicki Bond: The authors of today’s featured paper investigated how a decades-long stakeout of a sample of blazars uncovered new insights into a serious case of cosmic “jet-lag”. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/16/flashy-and-fashionably-late-the-fascinating-time-lag-in-blazar-flares/

From Madison VanWyngarden: Today’s bite reports the discovery of the most distant red galaxy ever confirmed! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/14/dawn-of-the-red-monsters/

From @qwasistellar.bsky.social: Artemis, AI, Astronomy, and our place in it. The author asks why do astrophysics at all. To produce results faster, or to turn graduate students into inefficient stand-ins for software? ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/10/tell-me-why-a-case-for-humane-astrophysics/

From Kasper Zoellner: Characterising exoplanet atmospheres is one of the primary challenges for the coming decades and absolutely essential for our understanding. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/13/exoplanets-in-a-bottle-how-laboratory-experiments-help-us-understand-distant-planets/

From Serat Saad: A new solution to Einstein’s general relativity suggests wormholes could be real and traveling through them might be possible. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/11/wormholes-might-be-more-real-than-we-thought/

From Joe Williams: How do astrophysicists research and model planet formation in protoplanetary discs? Learn how to simulate a protoplanetary disc using DustPy: software commonly used in state-of-the-art research! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/09/simulating-protoplanetary-discs/

From @kelsie137.bsky.social: In the race to resolve the tension between cosmological and local measurements of the Hubble constant, another method enters the contest… using gravitational wave signals without an electromagnetic counterpart!! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/08/hubbles-dark-horse/

From @astroneal.bsky.social: What if JWST’s early massive galaxies are not overestimated, but underestimated? A bottom-heavy IMF could hide tons of mass in faint stars. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/07/too-massive-too-early/

From @evannelles.bsky.social: Nothing beats the feeling of finding what you’re looking for. You can imagine the authors excitement when they received transmission spectroscopy data of sub-Neptune, TOI-270d. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/06/admiring-the-atmospheric-egg-shell-of-sub-neptune-toi-270d/

From @jaidai.bsky.social: The LHAASO collaboration tackle a gamma ray mystery in the LS I +61 303 system, investigating just who (or what) might be responsible. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/04/04/gamma-rays-lhaaso-lsi61303/

From @laurie-amen.bsky.social: Lenses aren’t always made of glass, sometimes they’re made of dark matter! How can we tell primordial black holes apart from dark black holes using gravitational microlensing. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/04/02/deblurring-dark-compact-objects-with-microlensing/

From Nathan Whitsett: Artemis II successfully launched on April 1st, 2026! But, why are we going back over 53 years later? ⚛️ 🔭 ☄️🧪 astrobites.org/2026/04/05/a...

There is a tradition in Astronomy to post silly science papers to the arXiv on Aprils Fools day. We’ve collected them all for 2026 and provided some “peer review”. astrobites.org/2026/04/06/april-fools-2026/

From Skylar Grayson and Nathalie Korhonen Cuestas: A survey of physics and astronomy departments across the country has shown that degrees in astronomy can be pretty different. Read more about the AAS SURGE committee’s findings and recommendations! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/01/surge-findings/

From Chris Layden: Today’s paper is about a star that has spun its neutron star companion back up, recycling it into a millisecond pulsar. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/31/transitional_millisecond_pulsar/

From Nicki Bond: In today’s paper, we explore how blazar light curves can be transformed into music and the benefits of this for both scientists and science communication. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/30/dancing-with-the-blazars/

From @astronokaz.bsky.social: Today’s bite explores life on the vegetation red edge…and how we might find it on other worlds. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/28/r...

From Kasper Zoellner: Whether you’re looking for a new way to organize your thoughts or just want to experiment with a different workflow, Obsidian offers a refreshing, local-first approach to note-taking. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/27/an-introduction-to-obsidian-for-the-busy-astronomer/

From @neevshah101.bsky.social: A direct descendant of the first stars! Read today’s bite to learn how the authors found it. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/26/child-of-first-stars/

From Viviana Cáceres: Only a tiny fraction of black hole binaries produce gravitational waves with measurable eccentricity. What does the eccentricity distribution tell us about how these binaries formed? ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/25/pinhole-eccentricity-distribution/

From Grace Piroscia: Today’s authors propose upgrades to the VLTI that will allow us to search for signs of life on distant worlds. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/23/guest-a-pricey-path-to-habitable-planets-expanding-the-vlti-to-directly-probe-exoplanets/

From Jared Bull: Moons are abundant within our own solar system, but astronomers have historically struggled to find moons (exomoons) within other systems beyond our own. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/24/hunting-for-exomoons-around-a-lonely-planet/

From guest Affan Khadir: One of the closest galaxy clusters is Fornax, and it was recently studied in detail using the MeerKAT radio telescope in South Africa. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/20/guest-the-closest-look-into-the-largest-nearby-cosmic-structures-a-foray-into-the-fornax-galaxy-cluster/

From Sarah Stevenson: If you have a cosmic mystery on your hands, surely it helps to examine it from as many angles as possible? Today’s authors do that, literally, while investigating the highest-energy particles in the universe. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/21/auger-uhecr-spectrum-2025/

With Earth Week just over a month away, this year’s theme is "Green telescopes for the pale blue dot": how can we build and design the instrumentation and hardware that we use every day in a sustainable manner? Save the dates and join the conversation! ⚛️ 🔭 ☄️ 🧪

From Michelle Park: What do a galaxy’s stellar clumps tell us about how it formed? Today’s guest author Michelle Park explores interesting properties of clumps from the FIRE simulations. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/19/f...

Clumpy galaxies dominate the early universe, yet their local counterparts are hard to find. A new machine‑learning approach learns to spot these hidden clumps and opens the door to studying them in far greater detail. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/18/teaching-machines-to-sport-star-formation/

From @astroryan.bsky.social: There’s no sugar on this doughnut – might we need to ditch tori for large nuclear disks around active galactic nuclei? Today’s authors peer deep into NGC 4151 to find out! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/17/ngc-4151-with-my-binocular-eyes/

From Isha Loudon: It’s looking a little (cosmic) rainy today! And the KM3NeT collaboration make the most of the muon downpour, testing for the presence of some familiar celestial bodies in their data. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/16/sun-moon-shadows-km3net/

Today’s PRJ letter presents the largest mass map to date, highlighting large scale structure in the Universe! ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/14/decades-des-map/

From Jared Bull: In today’s bite, we’ll be exploring the turbulent skies of WISE 1049AB, one of the closest known systems to our own solar system ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/13/hows-the-weather-looking-on-our-nearest-brown-dwarf-neighbors/

From Flavia Pascal: Today’s bite explores how hydrogen and silicates mix inside these mysterious worlds and what this tells us about their structure and evolution. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/12/mixing-planetary-cocktails/

From @laurie-amen.bsky.social: Today’s bite explores if highly magnetic compact objects called magnetars could explain where the observed background of high-energy neutrinos in our Universe comes from! ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/11/neutriyes-neutrino/

From Madison VanWyngarden: Today’s bite explores a new method to find the galaxies hosting the Universe’s first generation of stars ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/10/possible-glimpse-of-the-universes-first-stars/

From @kelsie137.bsky.social: Galaxy-modelers beware! Today’s bite will guide you through an analysis of CEERS2-588, a quirky, UV-luminous, early galaxy discovered by JWST that’s causing issues in our theoretical models! ⚛️ 🔭 ☄️🧪astrobites.org/2026/03/09/shes-not-like-the-other-galaxies/

From Skylar Grayson: Today’s paper tests some recent claims that there is a bias in cosmological distance measurements! ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/07/supernovaagebias_rebuttal/

From Munira Hoosain: The MeerKAT Radio Telescope recently detected the most luminous and distant hydroxyl (or OH) maser system – so intense it crossed the threshold from “mega-maser” to “giga-maser”. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/06/meerkat-gigamaser/

From @jaydewst.bsky.social: So we have a pretty good idea of how old the Universe is right? Well according to JWST data, maybe not? Rest assured, today’s bite gets to the bottom of the debate. ⚛️ 🔭 ☄️🧪 astrobites.org/2026/03/05/how_old_is_the_universe/

From Nicki Bond: How do the eating habits (accretion) of active galactic nuclei (AGN) affect the light emitted for animals in the AGN zoo? ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/04/feeding-time-at-the-agn-zoo/

In this latest ep, we explore the theme of fields in astronomy, from gravitational and magnetic fields to ones in some unusual units (🦅™️). Cole takes us on a mythological tour of Lagrange points, and Cormac guides us through the climates of inflated exoplanets. 🔭 astrosoundbites.com/2026/03/02/e...

From @qwasistellar.bsky.social: Hidden amidst far flung icy bodies beyond Neptune, is there a ninth planet in our solar system? ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/03/finding-planet-x-hopeless-romance-or-concrete-reality/

Mckenzie Ferrari reports for @astrobites.bsky.social on simulations that might help astronomers identify double-detonation supernovae early in their evolution. aasnova.org/2026/02/24/i... 🧪

Veronika Dornan reports for @astrobites.bsky.social on how astronomers are using JWST to figure out if star clusters are really as old as they seem. aasnova.org/2026/03/03/a... 🔭

From Serat Saad: For the first time, a supermassive black hole is discovered away from its galaxy’s center, exposed when it tears apart a star in a tidal disruption event. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/03/02/a-wandering-supermassive-black-hole-eating-a-star/

From Kaz Gary: Today’s bite explores exoplanets’ newest predator: dark matter. Black holes made up of dark matter may be lying at the hearts of planets…and eating them from the inside out. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/02/28/exoplanet-black-holes/

From Natalie Price: Take a walk down memory lane with I Zwicky 18, which could be the key to unlocking the secrets of the early universe. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/02/27/distance-to-izwicky18/

From Tori Bonidie and Magnus L’Argent: Giant mirrors in space to create sunlight at night and an AI data center made up of 1-million satellites are undergoing regulatory approval. How did we get here? ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/02/26/reflect-orbital-ai-data-center/