Current Hosts

Robert Berthiaume

RobRobert Berthiaume is a science enthusiast who holds a BSc in Physics & Astronomy from York University.  He has been involved in science outreach efforts with, the York University Observatory, 365daysofastronomy, Let’s Talk Science, and the Ontario Science Center.  He enjoys scuba diving , hiking, motorcycling, and while he doesn’t smoke or bite his nails, he does follow NASCAR.

Paul Delaney

YorkU’s lead SkyGuide, Paul Delaney, is a member of York University’s Department of Physics and Astronomy, the Coordinator of York’s campus observatory, and Director of the university’s Division of Natural Science. He holds both a Bachelors and a Masters Degree of Science, has worked as a nuclear physicist for Atomic Energy of Canada, served as a support astronomer at Arizona’s McGraw-Hill Observatory, and was a Master of Bethune College. Paul is also passionately involved in public outreach and is the recipient of several teaching, lecturing, and outreach awards. You can communicate with Paul via email or by joining the chatroom conversation during York∞Universe’s live broadcast.

Pat Hall

Pat Hall is an astronomer and Associate Professor in York University’s Department of Physics and Astronomy.  Born in California to Canadian parents, he double-majored in Physics and Astronomy at U. C. Berkeley and obtained a doctorate in astronomy at U. Arizona (even if it took 7.5 years). He then studied galaxies as a postdoctoral fellow at U. Toronto and quasars as a joint postdoc at Princeton and the Universidad Catolica de Chile before joining the faculty at York. He splits his time between research on quasars (and anything else astronomical that catches his fancy), teaching astronomy, and outreach. Once in a while he blogs at

Lianne Manzer

Lianne Manzer joined York Universe in the fall of 2010. She has a Masters of science in astrophysics from York University, studying active galactic nuclei. Since 2005, Lianne has been involved with the York University Observatory where she has lead, and contributed to, numerous public outreach events. Outside her scientific exploits, Lianne enjoys spending her time baking, playing competitive sports, and futilely attempting to become a better photographer. Lianne is on Twitter at @LianneManzer.

Ryan Marciniak

Ryan Marciniak is an entertainer, educator, and astronomer.  He attended McMaster university and received his Bachelor of Science in Astrophysics. He then completed his Masters degree in Astronomy at the University of Western Ontario. Since graduating, Ryan has been working diligently on Astronomy in ActionTM continuing to pursue his passions for teaching Astronomy  entertaining, and having a positive impact on children and youth across Ontario. Ryan is on twitter at @AstroInAction or @RMarciniakCAN.

Sophia Nasr

Sophia is a undergraduate student at York University majoring in Astrophysics. She is an active member of the York Observatory team, participating in Public Viewing, Online Public Viewing, tours, and more. She also runs the observatory’s twitter (@YorkObservatory) and facebook. You can reach Sophia on Twitter at @Pharaoness.


Jesse Rogerson

Jesse Rogerson joined the York Universe radio program in its early days as an on-air announcer.  Currently, Jesse is working on his Ph.D. in astrophysics at York University in Toronto, Canada.  His supervisor is Prof. Patrick Hall, and together they work on quasars.  Jesse has participated in many facets of the York Astronomical Observatory public outreach programs, including public viewing, private tours, and major outreach events.  In his spare time, you can find Jesse playing hockey or ultimate frisbee. Jesse blogs about his research and his various activities at his website. Jesse is on twitter at @jesserogerson.

Harrison Ruess

Harrison is from Toronto, Canada. He works in the tourism/culture industry delivering science-based public programs, demonstrations, and talks to groups of lovely people. He is currently completing a post-graduate certificate in Corporate Communications, and loves to get people excited about science and astronomy. To get in touch with Harrison tweet @ZamboniPilot or visit his website.

Jen Mehrnoush Zomederis

Jen - YorkUniverse

Jen is an undergraduate student at York University majoring in Physics and Astronomy. She is a proud member of the York Observatory team where she gets the chance to do research and engage in different forms of public outreach. She is also an executive member of the Astronomy Club and the Physics Society at York University. She runs the “Astronomy – the Art of Physics” facebook page.  Jen is on twitter at @Law_of_gravity.

2 thoughts on “Current Hosts

  1. Good day! This is my first comment here so I just wanted to give a quick shout out
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