Cosmos From Your Couch

Looking for a way to connect with the wider world–or maybe the wider universe–during the pandemic? The Dunlap Institute and our partners from across the University of Toronto want to connect with you! Come hear about everything from old cosmic mysteries to the latest research, all from the comfort of your own couch. We’ll be presenting talks online via Zoom and YouTube.

All talks will be streamed live on the Dunlap Institute YouTube channel and archived below for future viewing.



There are currently no upcoming events for this event type. Please check back soon.

Check back often, as we’ll be updating this page regularly with more talks.

 

ARCHIVED PAST TALKS:

Misconceptions About the Big Bang

Dr. Michael Reid
March 18, 2020, 7:00 p.m. EDT

Credit: NASA/SVS

Nearly everyone has heard that the Big Bang was an explosion that created the universe. Starting from a tiny seed called a singularity, the whole universe sprang into being. Or did it? This common description of how the Universe began isn’t entirely wrong, but nor is it entirely right. In this talk, I’ll show how the well-intentioned ways we describe and illustrate the beginning of the Universe often reinforce misconceptions, and how these misconceptions lead to unnecessary skepticism about the Big Bang theory. We’ll talk about what the theory does say, what it doesn’t say, and how we can imagine it more accurately.

Dark Energy & Dark Matter 

Dr. Renée Hložek
March 19, 2020, 6:00 p.m. EDT

Do you lie awake at night wondering what the difference is between dark matter and dark energy? Join Prof. Renée Hložek tonight for a talk about how they are different, how they change the Universe and why you should care about these exciting dark components of our cosmos! She’ll tell you not only about what they are and about some of the exciting telescopes we are building to discover the secrets of the Universe. Bring your cup or tea or cocktail, settle down and get ready to explore our exciting cosmos.

 

Finding Your Space in Time and Place

Dr. Roberto Abraham
March 24, 2020, 7:00 p.m. EDT

In this talk he’ll do his best to give you an astronomical perspective on Life, the Universe, and Everything.

Roberto Abraham is a Professor of Astronomy in the David A. Dunlap Department of Astronomy & Astrophysics at the University of Toronto. His research is in galaxy formation and evolution, as well as in the use of new technologies to enable breakthrough discoveries in astronomy. He is the former president of the Canadian Astronomical Society, has received many awards for his research and teaching, and has been involved in the construction and management of some of the most innovative telescopes on earth and in space.

 

 

 

Whispers From the Cosmos

Dr. Katie Breivik
March 26, 2020, 7:00 p.m. EDT

Sandbox Studio Chicago and Corinne Mucha

The recent discovery of gravitational waves marks the dawn of a new field of astronomy and provides new opportunities to study several elusive systems in the Cosmos. Compact binaries, made up of pairs of stellar remnants, are difficult to observe with traditional astronomical observations, but they are the most prolific source of gravitational waves. In this edition of Cosmos From Your Couch, we’ll do a light-speed intro of General Relativity, gravitational waves, and what we’ve learned from the 12 gravitational-wave detections to date!

 

A Brief History of Everything

Dr. Patrick Breysse
March 27, 2020, 7:00 p.m. EDT 

The Illustris-TNG collaboration

Fourteen billion years ago, the universe was little more than a cloud of hot hydrogen gas. I will tell the story of how that cloud of gas evolved into all of the galaxies, stars, and planets we see around us today. In the process, I’ll explain some of how astronomers study the history of the universe, and how telescopes are secretly time machines that let us look directly into the distant past. I’ll also talk about some of the great mysteries that remain in this story, and how we’re working in Toronto and elsewhere to solve them.

 

 

 

Questions From Your Couch

Dr. Katie Breivik, Dr. Abby Crites and Dr. Maria Drout
April 2nd, 2020, 7:00 p.m. EDT

Do you have a question for one of our astronomers? Our expert team will be live on Thursday, April 2nd at 7pm EDT for a “Cosmos From Your Couch” – Q and A edition! Submit a question for us at events@dunlap.utoronto.ca and then stay tuned to see it answered live on YouTube!

 

Weighing the Universe With a Balloon-Borne Telescope

Mohamed Shabaan
April 10th, 2020, 7:00 p.m. EDT

Is it possible to weigh the entire Universe? If so, why does it matter?

The fascinating answer lies with a telescope and team with roots at U of T and the Dunlap Institute. In recent years, Balloon-borne telescope “SuperBIT” has been making serious scientific strides at relatively low costs, and there’s much more to come.

 

 

 

Astronomical Alchemy

Dr. Maria Drout
April 14th, 2020, 7:00 p.m. EDT

As Carl Sagan once said, “We are made of star stuff.” In other words, every element in the Universe has its own astronomical origins story. Elements are created everywhere: from the centres of stars, to supernovae explosions, to the Big Bang itself.

On Tuesday, Professor Maria Drout will take us on a journey through the periodic table, highlighting exciting new results which will shed light on the origin of the heaviest elements in the Universe.

 

Cosmos From Your Couch: Ask Us Anything!

Dr. Illana MacDonald, Dr. Cameron Van Eck and Dr. Suresh Sivanandam
April 16th, 2020, 7:00 p.m. EDT

Do you have a question for one of our astronomers? Our expert team will be live on Thursday, April 17th at 7pm EDT for a “Cosmos From Your Couch” – Q and A edition! Submit a question for us at events@dunlap.utoronto.ca and then stay tuned to see it answered live on YouTube!

 

 

Exploring the Past Lives is Distant Galaxies

Dr. Kartheik Iyer

April 21st, 2020, 7:00 p.m. EDT

No tale about the Universe can be complete without talking about galaxies. Galaxies are massive cosmic structures containing billions to trillions of stars. But they can be a challenge to understand, because they are incredibly diverse in shape, size, and formation.

In this episode of “Cosmos From Your Couch,” we’ll explore galaxy evolution, and connect populations of galaxies across different ages of the Universe to figure out how they grow through cosmic time – and why some galaxies eventually stop forming stars.

 

The World Records of the Universe 

Dr. Bryan Gaensler

April 23rd, 2020, 7:00 p.m. EDT

It’s always exciting when a world record is broken. But the records set here on Earth are small-scale and puny, compared to those set elsewhere in our vast cosmos.

What’s the coldest place in space? What’s the fastest object in the Universe? What’s the biggest object we’ve ever seen in space? And what’s the loudest sound ever?

 

Planets Under Construction: How to Study a Million-year Process

Dr. Nienke van der Marel

April 28th, 2020, 7:00 p.m. EDT

Planets around other stars, also called exoplanets, are seen everywhere! In the last 25 years, thousands of exoplanets have been found throughout the Milky Way. How do we find these planets? What are the chances of discovering life there? And if they are so common, why is it that we still don’t know how they are formed? With the ALMA telescope we can now finally zoom into the birth cradles of planets: dusty disks around young stars. The spectacular images have given us new insights, but also raised many more questions on the process of planet formation.

 

Our Galactic Home: The Milky Way

Dr. Gwendolyn Eadie

April 30th, 2020, 7:00 p.m. EDT

Have you ever been to a place with almost zero light pollution, and seen the beautiful band of stars that spans across the night sky? The feeling of awe at this sight can be moving — it’s no wonder artists around the world love to photograph it! But what exactly is this band of stars and what does it tell us about where we are in the Galaxy, and in the universe? Join Prof. Eadie for a discussion about our Galaxy, from its spiral arms to its stellar halo, to its central black hole… and even its dark matter!  Together, let’s take a virtual tour of our shared Galactic home — the Milky Way!

 

Archeoastronomy 

Dr. John Percy

May 5th, 2020, 7:00 p.m. EDT

Archaeoastronomy can be defined as “the study of how people in the past have understood the phenomena in the sky, how they used these phenomena, and what role the sky played in their cultures”. University of Leicester archaeoastronomer Clive Ruggles has described it as “a field with academic work of high quality at one end, but uncontrolled speculation bordering on lunacy at the other”. This presentation will highlight examples from both the Old World and the New World. Presenter John Percy is a Professor Emeritus of Astronomy, and Science Education, at the University of Toronto, and an Associate of the Dunlap Institute. He has a longstanding interest in this and other interdisciplinary aspects of astronomy.

 

Adaptive Optics

Dr. Masen Lamb

May 12th, 2020, 7:00 p.m. EDT 

The twinkling in stars has long captured the imagination of humanity, acting as a doorway to the night sky for many and even serving as the focus for a classic children’s lullaby. The Earth’s turbulent atmosphere is responsible for this twinkling however, and its effect has hampered modern astronomy for decades. Space telescopes such as Hubble have been able to avoid this situation by existing well above the Earth’s atmosphere. However, the logistics with building space telescopes on a large scale (both in size and quantity) has largely motivated astronomers to explore other means to manage the effects of the turbulent atmosphere. The most prevalent method is through a technology called Adaptive Optics, where deformable mirrors help to mostly remove these atmospheric effects throughout the course of an observation. This talk aims to outline this technology and discuss its current and future role for ground-based astronomy.The twinkling in stars has long captured the imagination of humanity, acting as a doorway to the night sky for many and even serving as the focus for a classic children’s lullaby. The Earth’s turbulent atmosphere is responsible for this twinkling however, and its effect has hampered modern astronomy for decades. Space telescopes such as Hubble have been able to avoid this situation by existing well above the Earth’s atmosphere. However, the logistics with building space telescopes on a large scale (both in size and quantity) has largely motivated astronomers to explore other means to manage the effects of the turbulent atmosphere. The most prevalent method is through a technology called Adaptive Optics, where deformable mirrors help to mostly remove these atmospheric effects throughout the course of an observation. This talk aims to outline this technology and discuss its current and future role for ground-based astronomy.

 

Tension in the Expanding Universe

Emily Tyhurst

May 19th, 2020, 7:00 p.m. EDT 

What happens when scientists disagree on a measurement? The Hubble constant, the number which describes the expansion of the universe, can be measured from the cosmic microwave background, and from supernova data. However, these numbers have been in worsening disagreement for years. What tools do we as scientists use to investigate when methods might have systematic errors built in? What would it mean for cosmology, the study of the history of the universe, if both measurements were right? Join PhD Candidate Emily Tyhurst for this exciting story that goes all the way back to the origins of the universe itself.