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astro[sound]bites: Daily Summaries Delivered
by astrosoundbites
Astrobites for your ears. Three grad students bring you cutting-edge research findings in astronomy and connect the dots between diverse subfields.
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- Aug 8, 20267 min
Episode 123: Making Mergers Massive
In this episode, Shashank and Cormac introduce our new ASB cohost Vivasvaan! Vivasvaan gives us a broad strokes overview of what galaxy mergers are and why astronomers love to study them while giving us a glimpse into his research involving galaxy mergers and machine learning. We also hear about some of the fun things Vivasvaan likes to do such as playing chess, and watching sports.
- Jul 1, 20261h 1m
Episode 122: Fast and Fouriest
In this episode, Shashank, Cole and Cormac take a look at the periodic side of time-domain astronomy through the famed, fabled Fourier transform. Cole entreats us to the time lags in blazars and Cormac gives us a weather update on a brown dwarf. Along the way, we discuss some of the instruments, challenges and patterns in periodicity. Flashy and Fashionably Late: the Fascinating Time Lag in Blazar Flares: https://astrobites.org/2026/04/16/flashy-and-fashionably-late-the-fascinating-time-lag-in-blazar-flares/ How’s the Weather Looking on our Nearest Brown Dwarf Neighbors? https://astrobites.org/2026/03/13/hows-the-weather-looking-on-our-nearest-brown-dwarf-neighbors/ Space sound: https://www.youtube.com/watch?v=nBxn6QGWJNM
- May 24, 202646 min
Episode 121: No Country for Old Material
In this episode, we take a break from our usual astronomical antics to reflect on sustainability in the cosmos. Cormac, Cole and Shashank explore how the Universe manages to recycle material across all scales, from pepping up prostrated pulsars to cleaning up our orbital backyard. We conclude with a discussion of how analogies are (sometimes over)used in astronomy, and ponder when exactly a supernova remnant begins. Astrobites: Recycle your paper, plastic, and… pulsars? https://astrobites.org/2026/03/31/transitional_millisecond_pulsar The Final Frontier for the Circular Economy https://astrobites.org/2026/04/24/the-final-frontier-for-the-circular-economy Video about Swift boost mission: https://youtu.be/Up0LNTMPnjI
- May 11, 202645 min
Episode 120: Old Galaxies, New Problems
We’ve known about the existence of galaxies for about a hundred years, but how well do we actually know the extragalactic universe? In today’s episode, we dive deep on the earliest galaxies in the universe. Sanika covers her first bite on paradoxical galaxies that seem to be the deadest where we expect them to be alivest, and Shashank shows us a source of hidden mass in ancient galaxies that for once isn’t dark matter. Astrobites: The Walking Red: Why are you so quiet and overdense? https://astrobites.org/2026/04/03/walking-red/ Too Massive, Too Early… and Still Not Massive Enough? https://astrobites.org/2026/04/07/too-massive-too-early/ Space Sound: https://www.youtube.com/watch?v=4BPFHTVMmbQ
- Apr 4, 202615 min
Episode 119: Gravitational Vibes
In this episode, we dive into the ripples of spacetime with a special focus on gravitational waves. Cole and Cormac are joined by a new host, Sanika, who introduces her research in gravitational wave astrophysics and sets the stage for the discussion. Together, they explore the role of neutron star and black hole mergers in producing gravitational waves, how we detect them, and what they reveal about some of the most extreme events in the universe. The conversation highlights major achievements from detectors like LIGO and Virgo, from the first historic detection to the growing catalog of binary mergers. Looking ahead, they discuss the exciting future of the field, including next-generation observatories and space-based missions like LISA. By the end, you’ll be tuned into the gravitational vibes shaping modern astrophysics. Fact sheet: https://ligo.org/detections/gw250114-10-years-of-gravitational-wave-astronomy/ Questions? astrosoundbites@gmail.com
- Mar 14, 202641 min
Episode 118: Star-studded submissions
In this episode, as we (at the time of recording) approach Astronomy’s (JWST) awards season, Cormac and Cole shed some light on just how ideas become astronomical datasets. Our two putative principal investigators discuss why grad students should consider applying for telescope time, the main components and categories of proposals, and how successful proposals are finally selected and scheduled. We conclude with our most memorable moments from our own efforts to get time on facilities like JWST, Roman and Gemini. SPHEREx Data Tools: https://irsa.ipac.caltech.edu/applications/spherex/
- Mar 2, 202651 min
Episode 117: A Field Day
In this episode, we move away from point particles to talk about fields. Shashank, Cole and Cormac start with a discussion of different kinds of fields in astrophysics. Then, Cole describes Lagrange points and why they can be useful for satellites and asteroids seeking a safe place to camp out (or lay siege). Cormac dives into the atmospheres of hot Jupiter exoplanets, where we get a glimpse of temperature and wind velocity fields on other planets. By the end, you’ll certainly have a lot more field experience! What’s the (Lagrange) point? https://astrobites.org/2026/01/29/whats-the-lagrange-point/ The Fires Within: Investigating the Atmospheres of Inflated Hot Jupiters https://astrobites.org/2023/01/03/hot_interior_exoplanets/ Space sound: https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/The_scary_sound_of_Earth_s_magnetic_field
- Feb 7, 202655 min
Episode 116: Love’s Gonna Get you killed, but Tide’s gonna be the death of you
In our valentines’ day special, Shashank, Cole, and Cormac explore the dating lives of stars and other compact objects by looking at the romantic couples of astrophysics: binary systems. Immediately ruining this theme, Shashank covers some particularly messy breakups (though these lovers are able to rebound and move on) while Cormac shows us how even stars’ healthy relationships involve some give and take. Astrobites: What are Partial Tidal Disruption Events, and How Do We Find Them? https://astrobites.org/2025/08/04/partial-tdes-galactic-center/ Sharing is caring: how do binary stars actually transfer mass? https://astrobites.org/2025/07/14/binary-mass-transfer/ Space Sound: https://www.nasa.gov/missions/chandra/nasa-telescopes-tune-into-a-black-hole-prelude-fugue/
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About astro[sound]bites
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