Colloquia


The Green Bank Colloquium is a presentation made by astronomers and for astronomers. Colloquia are generally held in the Jansky Laboratory Auditorium at the Green Bank Observatory and the general public is encouraged to attend. Please keep in mind that the topics and information covered is geared towards an audience with a solid grasp of research astronomy.

Upcoming Colloquium talks

DateSpeakerAffiliationTopic

Science Community Webinars

Upcoming talks

DateSpeakerAffiliationTalk Title
2026-05-06Rachel OstenSpace Telescope Science InstituteHow Green Bank Interferometer Data is Helping in the Search for Exoplanets

Past talks

DateSpeakerAffiliationTitleLink to Recording
2026-04-22Nereida Rodriguez-Alvarez, et al.NASA JPLBistatic Radar Observations of Artemis II (Integrity) with DSS-13 and the Green Bank Telescope: An Operational Spacecraft Tracking Capability
2026-04-08Laura C. HunterDartmouth CollegeThe Star Forming Satellites of Low-Mass Galaxies
2026-03-25Joseph KaniaJodrell bank, University of ManchesterTwenty-four thousand hours of GREENBURST observations with the GBT
2026-03-11Ben Jacobson-BellBerkeley, Breakthrough ListenBreakthrough Observations of 3I/ATLAS
2026-02-25Thankful CromartieNaval Research LabShapiro Delay Measurements from Fifteen Years of PSR J1231-1411 Radio Observations
2026-02-11Chris DePreeNRAOSharing the Radio Spectrum with Satellite Constellation Operators
2026-01-28Megan DeCesarGeorge Mason University/US Naval Research LabPulsars in the Globular Cluster Terzan 1
2026-01-14Lisa GianiINAFCarbon chain diversity in L1544 and IRAS 16293-2422
2025-12-03Nycole WennerAdler PlanetariumGBT observations of SiO emission in the Galactic Center
2025-11-19Evan LewisWest Virginia UniversityGBO Observations of the Unique Radio Magnetar Swift J1818–1607
2025-11-05Eric KochHarvard – Smithsonian CfAThe Local Group L-Band Survey
2025-10-22Anna DignanUniversity of VirginiaThe Star Formation in Radio Survey: Adding 90 GHz Data to 3–33 GHz Observations of Star-forming Regions in Nearby Galaxies
2025-10-08Sarah Burke-SpolaorWest Virginia UniversityExploring FRB progenitors with a deeply shrouded FRB
2025-09-24Derck SmitsUNISAFirst detection of circular polarization in 4.7 GHz excited OH masers
2025-09-10John CannonMacalester College100 Proof: H I Observations of 100 Nearby Dwarf Galaxies with the 100 m Green Bank Telescope
2025-08-27Anish RoshiUniversity of Central. FloridaDetection of Helium Recombination Lines in the Cygnus X Diffuse Ionized Gas
2025-08-13Steve CroftUC Berkeley, Oxford University, SETI InstituteUpdates from the Breakthrough Listen Technosignature Search
2025-07-30Jay LockmanGreen Bank Observatory NRAOKinematics of Neutral Gas in the Fermi Bubble wind
2025-07-16Erica BehrensUniversity of VirginiaProbing the Kinematics of Multiple- and Single-Protostar Systems in Perseus with N2H+
2025-07-02Pamela FreemanUniversity of CalgaryChemical Diversity in High-Mass Star-Forming Regions
2025-06-18Rongmon BordoloiNorth Carolina StateA New High-latitude H I Cloud Complex Entrained in the Northern Fermi Bubble
2025-06-04Jacob TurnerGreen Bank ObservatoryAn Extreme Scattering Event Towards PSR B2310+42
2025-05-21Bradley JohnsonUniversity of VirginiaAxions in Andromeda: Searching for minicluster-neutron star encounters with the Green Bank Telescope
2025-05-07Natalie ButterfieldNRAODiscovery of a GMC located at the Midpoint of the Galactic Bar Dust Lane
2025-04-23Tony RemijanGreen Bank ObservatoryThe Missing Link of Sulfur Chemistry in TMC-1: The Detection of c-C3H2S from the GOTHAM Survey
2025-04-09Kimberly EmigNRAOCold ‘dark’ gas in Cygnus X: The first large-scale mapping of low-frequency carbon recombination lines
2025-03-26Kyle CorcoranUniversity of VirginiaTiming Redback Millisecond Pulsars with Nearly 20 Years of Data from the GBT
2025-03-12Daniela de PaulisSETI Institute; Green Bank ObservatoryA Sign in Space Analogies between the Project and a Real First-Contact Scenario
2025-02-12Caleb PainterHarvard UniversityA New Approach to Technosignature Searches in Green Bank Telescope Observations
2025-01-29Jack GallimoreBucknell UniversityNRAO’s High Sensitivity Array Reveals Sub-parsec Magnetic Field Structure in an AGN Accretion Disk
2025-01-15Bruce CampbellSmithsonian InstitutionThe Unique Role and Future Impact of Arecibo-GBT 70-cm Lunar Radar Maps
2024-12-18Gabi WenzelMassachusetts Institute of TechnologyDiscovery of three cyanopyrene isomers in TMC-1
2024-12-04Tom DonlonUniversity of Alabama, HuntsvillePulsars as Accelerometers: Exploring Binary Pulsar Systems and the Milky Way
2024-11-20Loren AndersonWest Virginia UniversityThe Galactic Center Lobe as an HII Region
2024-11-06Ananthan KarunakaranUniversity of TorontoHI in Optically Detected Ultra-Diffuse Galaxies
2024-10-23Simon DickerUniversity of PennsylvaniaMUSTANG2 – the past, present, and future
2024-10-09Tony Beasley & Jim JacksonNRAO/GBOWhat’s Next for the GBO: Reintegration with the NRAO
2024-09-25Alexander McEwenUMBCThe Green Bank 820 MHz Pulsar Survey: Discoveries and Follow-up
2024-09-11David StarkSTSciUsing GBT HI observations to probe the origins of breakBRD galaxies
2024-08-28Trey WengerUniversity of WisconsinCool Diffuse Ionized Gas Revealed by Sensitive Radio Recombination Line Observations
2024-08-14Priyadarshini BangaleUniversity of DelawareA 350 MHz Green Bank Telescope Survey of Unassociated Fermi-LAT Sources
2024-07-31Carmen ChozaSETI InstituteExpanding our Cosmic Reach: New Targets and Enhanced Methods for SETI with Breakthrough Listen on the GBT
2024-07-17Spandan ChouduryKorea Astronomy and Space Science InstituteRevealing infall onto the subsonic filaments of B5 core using NH3 observations
2024-07-03July 4th Holiday
2024-06-19National Holiday
2024-05-29Sanskriti DasKavli Institute, Stanford UniversityA deep search for missing accretion in the circumgalactic medium
2024-05-22Scott RansomNRAOThe milli-second pulsars of the globular cluster Terzan 5
2024-05-08Jack Orlowski-SchererUniversity of PennsylvaniaA Survey of Point Sources in Clusters of Galaxies, and Other Updates from MUSTANG-2
2024-04-24Karen O’NeilGreen Bank ObservatoryA Galaxy Without Stars?
2024-04-10Chi Yan LawChalmers Univ. Tech.Polarized Light from Massive Protoclusters (POLIMAP): Dissecting the role of magnetic fields in the massive infrared dark cloud G28.37+0.07
2024-03-27Patrick TaylorNRAONext Generation Planetary Radar with the Green Bank Telescope
2024-03-13Rachel FriesenUniversity of TorontoDynamics in Star-forming Cores (DiSCo) with Argus on the GBT
2024-02-28Jialu LiUniversity of Maryland, USAArgus/GBT Observations of Molecular Gas in the Inner Regions of IC 342
2024-02-14Paulo FreireMax Planck Institute for Radio Astronomy, GermanyNGC 1851E: A millisecond pulsar in a binary system with a compact companion in the mass gap between neutron stars and black holes
2024-01-31Maria DrozdovskayaCenter for Space and Habitability (CSH), Universität Bern)Observing comet C/2020 F3 (NEOWISE) with the GBT and Nançay in pursuit of NH3/H2O
2024-01-17Michael BuschSC San Diego, USADetection of faint normal 18cm OH emission from CO-Faint Dark Molecular Gas in M31
2024-01-03Michael ShullUniv. Colorado & Univ. North Carolina, Chapel Hill, USAThe High-Latitude Interstellar Medium: Dust and Gas in the Galactic Halo
2023-12-20Andrew FoxSTScI, USAThe Metallicity of Compact High-Velocity Clouds
2023-12-06Jean-Luc MargotUCLA, USAAre we alone? New estimates on transmitter prevalence from UCLA SETI data
2023-11-08Yuxin LinMax Planck Institute for extraterrestrial Physics, GermanyPiecing the physical and chemical conditions of early-stage cores: ammonia observations from GBT and VLA
2023-10-25Yuri Y. KovalevMax Planck Institute for Radio Astronomy, GermanyRadioAstron and GBT imaging of nearby AGN: exciting results on M87 and 3C84
2023-10-11Mark SneldersASTRON, The NetherlandsMicrosecond duration bursts from FRB 20121102A
2023-09-27Dunc LorimerWest Virginia University, USA
The latest from GREENBURST: a real-time transient detector on the GBT
2023-09-13Larry MorganGBO, USAFilaments All the Way Down: Examining the hierarchical nature of the ISM
2023-08-30Charles RomeroHarvard-Smithsonian Center for Astrophysics, USAGBT/MUSTANG-2 achieves a milestone in galaxy cluster studies
2023-08-16T. P. KrichbaumMax Planck Institute for Radio Astronomy, GermanyMapping the jet origin of M87
2023-08-02Reshma ThomasWest Virginia University, USAMagnetic field reversal in the turbulent environment around a repeating fast radio burst
2023-07-19Haley ScolatiUniversity of Virginia, USAAstronomical detection of the interstellar anion C10H- towards TMC-1 from the GOTHAM large program on the GBT
2023-07-05Nihan PolVanderbilt University, USANew Results from the NANOGrav Collaboration
2023-06-21Ryan LynchGBO, USAUpdate on GBT Cyclic Spectroscopy Backend
2023-06-07Willem BaanASTRON, The NetherlandsThe VLBI Tale of Two Megamasers
2023-05-24Pedro SalasGBO, USARevisiting the density of the ionized gas in the Galactic plane with the GBT
2023-05-10Tierra CandelariaNew Mexico TechWidespread hot ammonia in the central kiloparsec of the Milky Way
2023-04-26Stefano AndreonINAF-OA Brera, Milan, ItalyFirst massive galaxy clusters emerging from the web at the cosmic noon
2023-04-12Dan StinebringOberlin College, USAHow Porous is the Ionized Interstellar Medium? Results from a Scintillation Arc Survey
2023-03-29Shantanu NaiduJPL, USADimorphos orbit change due to the DART impact
2023-03-15Gaspar GalazPontificia Universidad Católica de Chile, ChileThe molecular gas content of the giant low surface brightness galaxy Malin 1 from GBT/ARGUS observations
2023-03-01Ingrid StairsUniversity of British Columbia, CanadaTests of Strong-Field Gravity with the Double Pulsar
2023-02-15Antoine MarchalAustralian National University, AustraliaMapping the thermal condensation of diffuse H I in the North Celestial Pole Loop with the GBT
2023-02-01Michael A. GarrettJodrell Bank Centre for Astrophysics, UKSETI: Near & Far with Breakthrough Listen and the GBT
2023-01-18Emilie ParentInstitute of Space Sciences (ICE – CSIC), BarcelonaSearching for pulsars and fast transients with GBT: Status of the GBNCC survey and future prospects
2023-01-04Ross JenningsWest Virginia UniversityAn unusual pulse shape change in the millisecond pulsar J1713+0747 observed with the GBT and CHIME
2022-12-07Jane GreavesCardiff University, UKGBT Photometry Seeking Pebbles in Protoplanetary Discs
2022-11-16Green Bank Observatory Town Hall – Hear what’s new, and what’s to come at the Green Bank Observatory
2022-11-09Helen KirkHerzberg Research Center, VictoriaEarly Results from the KEYSTONE Survey of molecular clouds
2022-10-26Aya KellerUniversity of California, Berkeley, USAA Model-Independent Dark Matter Search Using GBT Data
2022-10-12Tony RemijanNRAO, USAPRIMOS: The Prebiotic Interstellar Molecular Survey
2022-09-28Felix J. LockmanGBO, USAA “Leading Arm” of the Smith High Velocity Cloud Stream
2022-09-14Lance BennerNASA — JPL, USAThe Apophis Planetary Defense Campaign
2022-08-31Jack Orlowski-SchererMcGill UniversityConstraints on the Thermodynamic State of X-Ray Bubbles in MS0735 with MUSTANG-2
2022-08-17Akshay SureshCornell University, USAA Galactic Center Search for Fast Transients at 4–8 GHz
2022-08-03Ananthan KarunakaranInstituto de Astrofísica de AndalucíaHI Properties of Satellite Galaxies Around Local Volume Hosts
2022-07-06Scott RansomNRAO, USANANOGrav and the Road to nanoHertz Gravitational Wave Detection
2022-06-22Dongzi LiCaltech, USAThe magneto-active environment near FRBs and pulsars
2022-06-08Adam HincksUniversity of Toronto, CanadaMapping the Gas in Intercluster Filaments with the Sunyaev-Zeldovich Effect
2022-05-25Kim EmigNRAO, USARevealing the Diffuse ISM in Cygnus X using Low-frequency Radio Recombination Lines
2022-05-11Di LiNational Astronomical Observatory of China, ChinaA Unified Description of FRB polarization based on FAST and GBT joint observations
2022-04-27Jeffrey HazbounUniversity of Washington, USAMonitoring the Solar Wind with Pulsar Timing Arrays observations
2022-04-13Karen PerezColumbia University, USAOn the Breakthrough Listen Search for Intelligent Life Near the Galactic Center
2022-03-30Al MarscherBoston University, USAPeering Deep into Blazar Jets with VLBI Including the GBT
2022-03-16Patrick TaylorAUI, USAPlanetary Radar with the Green Bank Telescope
2022-03-02Jim JacksonGBO, USARAMPS: The Radio Ammonia Mid-Plane Survey
2022-02-16Maria CharisiCaltech, USANANOGrav limits on supermassive black hole binaries in massive galaxies
2022-02-02Eric KochCfA, USADetailed atomic ISM kinematics across the Local Group with the GBT and VLA
2022-01-19Emily MoravecGBO, USAExploring Merging Galaxy Clusters and Radio Galaxies at z~1
2022-01-05Jorge PinedaJPL, USACharacterizing the ionized and neutral phases of the ISM with far-infrared fine-structure and radio recombination lines
2021-12-22Haley WahlWest Virginia UniversityThe NANOGrav 12.5-Year Data Set: Polarimetry and Faraday Rotation Measures from Observations of Millisecond Pulsars with the Green Bank Telescope
2021-12-08Eleonora BianchiUniversity of GrenobleThe early stages of Solar-type protostars: the missing evidence of large carbon chains
2021-11-17Jim JacksonGBOGBO’s Response to the Recent Decadal Survey
2021-11-10D. J. PisanoWest Virginia UniversityTowards an understanding of the Circumgalactic Medium of Andromeda
2021-10-27Amanda KepleyNRAOObserving the Dense Molecular Gas Fueling Star Formation in Nearby Galaxies
2021-10-13David FrayerGBOGBT Observations of Gas in Luminous Infrared Galaxies
2021-09-29Steve CroftUC BerkeleyBreakthrough Listen on GBT: How the World’s Biggest Steerable Dish is Engaging in the World’s Biggest SETI Program
2021-09-15Emmanuel FonsecaWest Virginia UniversityMeasuring the Radius of a High-Mass Neutron Star with Radio and X-ray Observations
2021-09-01Charles RomeroGBOInsights into Thermodynamic Evolution of Galaxy Clusters
2021-08-18Michael BuschJohns Hopkins UniversityRevealing the Galactic Distribution of Dark H2 with GBT Observations of Faint OH Emission
2021-08-04Nissim KanekarTata Institute of Fundamental ResearchFuelling Starbursts: HI in Green Pea galaxies
2021-07-21Jaime PinedaMax-Planck-Institut für extraterrestrische PhysikThe ion-neutral connection in Dense Cores
2021-07-07Marina BrozovicJPLBistatic radar observations of NEOs with Goldstone and the GBT
2021-06-23Trey WengerDRAOGalactic HII Regions and Structure in the Milky Way
2021-06-09Sara IssaounRadboud UniversityThe Size, Shape, and Scattering of Sagittarius A*
2021-05-26Natalie ButterfieldGBODense Molecular Gas in the Galactic Bar
2021-05-12Helene CourtoisUniversity of LyonCosmic-Flows in Green Bank : Discovery of Laniakea and Beyond
2021-04-28Laura WolzManchester UniversityHI constraints from the cross-correlation of eBOSS galaxies and Green Bank Telescope intensity maps
2021-04-14Amy SardoneOhio State UniversityQuantifying the diffuse HI around 18 MHONGOOSE galaxies
2021-03-31Jean-Luc MargotUCLASpin state and moment of inertia of Venus
2021-03-17Brett McGuireMITAn update from the GOTHAM Large Project: New molecules and new chemistry at the earliest stages of star-formation
2021-03-03Charles RomeroGBOInsights into Intracluster Medium Physics from MUSTANG-2
2021-02-17Kristine SpekkensRoyal Military College of Canada; Queen’s UniversityHI in Ultra Diffuse Galaxies to Probe their Origins
2021-02-03Tom BaniaBoston UniversityGBT Observations of 3He+: Planetary Nebulae
2021-01-20Kar BargerTexas Christian UniversityHydrodynamic Instabilities along the Infalling High-velocity Cloud Complex A
2021-01-06Jesse Bublitz, Will Armentrout, Pedro Salas, Ryan LynchGBOGBO Staff Presentations at the AAS meeting
2020-12-16Megan DeCesarGeorge Mason Univ; US Naval Research Lab.Using the GBT for Gravitational Wave Searches with Pulsar Timing Arrays
2020-12-02Dom PesceHarvard-Smithsonian Cntr. for AstrophysicsA geometric measurement of H0 by the Megamaser Cosmology Project
2020-11-18Joseph SimonUniversity of Colorado, BoulderThe search for a stochastic gravitational wave background in NANOGrav’s pulsar timing data
2020-11-04Adam GinsburgUniversity of FloridaA GBT MUSTANG-2 Survey of the Galactic Plane: HII regions and dust
2020-10-21Rachel FriesenUniversity of TorontoUnderstanding the evolution of star-forming cores and filaments with GAS
2020-10-07Enrico Di TeodoroJohns Hopkins UniversityGBT Science: Gas Clouds Entrained in the Milky Way’s Nuclear Wind
2020-09-23Ryan LynchGBORecent Results from the NANOGrav Pulsar Timing Array
2020-09-09Brian MasonNRAOLong Wavelength measurements of Interstellar Dust in Orion
2020-08-26Loren AndersonWest Virginia UniversityIonized Gas in the Galactic Midplane
2020-08-12Karen MastersHaverford CollegeHI-MaNGA: HI Followup for the MaNGA Galaxy Survey with GBT
2020-07-29H. Thankful CromartieUniversity of VirginiaRecent Relativistic Shapiro Delay Observations with the GBT
2020-07-15Brian SvobdaNRAOTowards a multi-scale view of dense gas in the Milky Way
2020-06-24Toney Minter, David Frayer, Will ArmentroutGBOSoftware Support Projects
2020-06-11Jill Malusky, Sue Ann Heatherly, Amanda White, Ryan LynchGBOPublic Outreach and Educational Programs
2020-05-20Brian Mason, Charles RomeroNRAO, GBOMUSTANG-2 Current & Future Science
2020-05-06David Frayer, Pedro SalasGBO3mm Spectroscopy
2020-03-21Ryan LynchGBOPulsar Science