Wednesday, November 30, 2022 — 11:30 AM EST
Ana Ennis

Ana Ennis is currently a PhD fellow from CONICET, Argentina, who will soon be joining the University of Waterloo as a postdoctoral fellow. Her main research interests are the formation and evolution of galaxies, and she has mainly worked on studying the evolutionary history of early-type galaxies using discrete tracers such as globular clusters and planetary nebulae.

Wednesday, November 23, 2022 — 12:00 PM EST
Jon Carrick

Jon Carrick is a CFA® charterholder who has focused his career on development finance initiatives across the globe.  He is Senior Investment Manager at InfraCo Africa, and has led investments in the water, transport, and power sectors including for renewable grid-tied independent power projects.  Jon is a Non-Executive Director for Bboxx, a

Wednesday, November 16, 2022 — 11:30 AM EST
Emery Trott

Emery Trott is a Physics PhD candidate at the University of Michigan advised by Dragan Huterer. Emery is interested in tensions in the LCDM model of the Universe, and is currently working on how gravitational waves can inform us about the Hubble constant.

Wednesday, November 9, 2022 — 11:30 AM EST
Sara Issaoun

Sara Issaoun is an NHFP Einstein Fellow at the Center for Astrophysics | Harvard & Smithsonian and a member of the Event Horizon Telescope collaboration. Her research centers around the collection, calibration, and imaging of millimeter-wave radio observations of supermassive black holes. Sara aims to expand millimeter-wave radio imaging capabilities and forge strong connections between the first images of supermassive black hole shadows and physics probed by partner facilities across the electromagnetic spectrum. Multi-wavelength constraints on black hole accretion flow properties will critically inform the scientific interpretation of images of black hole shadows, our understanding of jet-launching mechanisms, black hole spin measurements, and, ultimately, precision tests of General Relativity.

Wednesday, November 2, 2022 — 11:30 AM EDT
Liza Sazonova

Liza Sazonova is a an incoming postdoctoral fellow at uWaterloo, working on structural evolution of galaxies using the upcoming Rubin LSST survey.

Tuesday, November 1, 2022 — 7:00 PM EDT
planets orbiting the sun

Celebrate Dark Matter Day with some Dark Matter Trivia!

Hypothetically speaking, what is believed to account for 85% of matter in the Universe? If you answered, DARK MATTER, then you’re exactly the person we’re looking for! If you didn’t… then join us anyway for a fun evening playing online trivia and pretend like you know the answers!

Wednesday, October 26, 2022 — 11:30 AM EDT
Mohaddesseh Azimlu

Mohaddesseh Azimlu completed her PhD dissertation on studying star-forming regions at University of Waterloo in 2009. Then continued her research on star formation in other galaxies at Western University in London, Ontario and later joined Harvard-Smithsonian Center for Astrophysics in 2011. She left academia and joined Ontario Public Services in 2015, but continued outreach activities in science and astronomy since then. She is currently a team lead at the Ministry of Health, employing her knowledge in data science and mathematical modeling to lead data and forecasting team in public drug programs. 

Wednesday, October 19, 2022 — 11:30 AM EDT
Stefano Camera

Stefano Camera is an Associate Professor at the University of Turin (Italy), where he returned after having been postdoc and research fellow at the High Technical Institute of the University of Lisbon (Portugal) and at the Jodrell Bank Centre for Astrophysics of The University of Manchester (UK).  His research spans various areas of cosmology with surveys

Wednesday, October 12, 2022 — 11:30 AM EDT
Roan Haggar

Roan Haggar is a postdoctoral fellow, working with simulations of galaxy clusters. He has a particular interest in cluster dynamics, galaxy evolution and large-scale structure, and is also involved in science communication and outreach.

Wednesday, October 5, 2022 — 11:30 AM EDT
Felipe Oliveira

Felipe Andrade-Oliveira is a postdoctoral researcher at the University of Michigan. His research is focused on the investigation of the Large Scale Structure and the Dark Energy nature through Cosmological Surveys. He works as a Pipeline Scientist for Legacy Survey of Space and Time (LSST) where he is also the co-leader of the covariance topic team.

Wednesday, September 28, 2022 — 11:30 AM EDT
Claudia Scarlata

Claudia Scarlata received her PhD from Padova University, in 2004. After holding postdoctoral positions at ETH-Zurich (CH) and Caltech, in 2011 she moved to the University of Minnesota, Twin Cities, where she is currently a Distinguished McKnight professor. Her research focus on problems related to the formation and evolution of galaxies. She is involved in the upcoming Euclid space mission, supporting the planning and optimization work for the cosmological surveys. More recently, her work has focused on the physical conditions that enable the reionization of the Universe at z>6.

Wednesday, September 21, 2022 — 11:30 AM EDT
Mohamad Shalaby

Mohamad Shalaby is a senior postdoctoral researcher at the Leibniz institute for astrophysics Potsdam (Germany).  His research focuses on studying acceleration, transport and non-thermal radiation processes from plasmas that permeate our visible universe, i.e., from stellar to intergalactic environments and thus their implied complex feedback on various observables. Mohamad attended AIMS (South Africa) and PSI programs before finishing his PhD under the supervision of Avery Broderick in 2017 at University of Waterloo and perimeter institute for theoretical physics.

Wednesday, September 14, 2022 — 11:30 AM EDT
Yun Wang

Yun Wang has led Galaxy Clustering science on the Roman Space Telescope, and is the deputy lead for Euclid Galaxy Clustering SWG. She is the PI for the proposed NASA space mission concepts, ISCEA (Infrared Satellite for Cosmic Evolution Astrophysics) and ATLAS (Astrophysics Telescope for Large Area Spectroscopy). She is a Senior Research Scientist at IPAC at California Institute of Technology.

Wednesday, September 7, 2022 — 11:30 AM EDT
Jessica Muir

Jessie Muir is a postdoctoral fellow at the Perimeter Institute for Theoretical physics working on cosmology theory and data analysis. Previously she was a Porat Fellow at KIPAC, at Stanford University, and she obtained her PhD at the University of Michigan. As part of the Dark Energy Survey Theory and Combined Probes working group, she has co-led the analysis team constraining model extensions to LCDM with the survey's first three years of galaxy clustering and weak lensing. 

Wednesday, August 10, 2022 — 7:00 PM EDT
Perseid Meteor
Wednesday, May 18, 2022 — 7:00 PM EDT
Katie Mack

Dr. Katie Mack is a theoretical astrophysicist exploring a range of questions in cosmology, the study of the universe from beginning to end. She is currently an assistant professor of physics at North Carolina State University, where she is also a member of the Leadership in Public Science Cluster.

Tuesday, May 3, 2022 — 12:00 PM EDT
Ryley Hill

Ryley Hill - Resolving galaxy protoclusters from the cosmic infrared background

Wednesday, March 30, 2022 — 11:30 AM EDT
Nicole Nesvadba

Nicole Nesvadba, directrice de recherche at the CNRS, is an expert in galaxy evolution based at the Laboratoire Lagrange at the Observatoire de la Côte d’Azur in Nice, France.

Wednesday, March 23, 2022 — 11:30 AM EDT
Ananth Tenneti

Ananth Tenneti - I completed my PhD in Physics at Carnegie Mellon University in December 2016. I have studied intrinsic alignments of galaxies using cosmological hydrodynamical simulations. Intrinsic alignments are an important astrophysical systematic in the weak lensing analysis for upcoming surveys such as the LSST (Rubin) and Euclid.

Wednesday, March 16, 2022 — 11:30 AM EDT
Serena Perrotta

Serena Perrotta is an Assistant Project Scientist at the Center for Astrophysics & Space Sciences in the Department of Physics at the University of California San Diego. She received her B.S. and M.S. in Astrophysics from the University of Bologna (Italy) and her Ph.D.

Wednesday, March 9, 2022 — 11:30 AM EST
Nicolas Cowan

Nicolas Cowan is an Associate Professor and Canada Research Chair in Planetary Climate at McGill University. His group uses telescopes and models to study the climates of exoplanets. Cowan was previously an Assistant Professor of Astronomy at Amherst College, and a CIERA Postdoctoral Fellow at Northwestern University.

Wednesday, March 2, 2022 — 11:30 AM EST
Tom Rose

Tom Rose is a postdoctoral researcher at the University of Waterloo focusing on radio observations of massive galaxies and galaxy clusters. His principal work looks at the shadows of molecular gas clouds cast against the bright active galactic nuclei at the centres of these galaxies.

Wednesday, February 23, 2022 — 11:30 AM EST
Aaron Vincent wearing glasses outside

Aaron Vincent: "I am a theoretical astroparticle physicist and member of the Arthur B. McDonald Canadian Astroparticle Physics Research Institute, as well as the Queen's Astronomy Research Group, in the Department of Physics, Engineering Physics and Astronomy at Queen's University. 

Wednesday, February 16, 2022 — 11:30 AM EST
Andrew Wetzel

Andrew Wetzel is an associate professor of physics and astronomy at the University of California, Davis. His research focuses on galaxy formation, through the use of cosmological zoom-in simulations, in particular, understanding the building blocks and formation history of our own Milky Way galaxy.

Wednesday, February 9, 2022 — 11:30 AM EST
Ingrid Stairs

Ingrid Stairs obtained her B.Sc. from McGill University and her Ph.D from Princeton studying pulsars, then did postdoctoral work at Jodrell Bank and Green Bank before joining the faculty at UBC.  She was promoted to Full Professor there in 2012, and has won the CASCA Peter G.


  1. 2023 (14)
    1. April (2)
    2. March (5)
    3. February (4)
    4. January (3)
  2. 2022 (30)
    1. November (6)
    2. October (4)
    3. September (4)
    4. August (1)
    5. May (2)
    6. March (5)
    7. February (4)
    8. January (4)
  3. 2021 (37)
  4. 2020 (36)
  5. 2019 (17)