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PODCAST

Allan I Carswell Observatory Presents: York Universe

Dr. Elaina Hyde

York Universe is a weekly astronomy and astrophysics program written and presented by the students, faculty, alumni, and friends of the Allan I Carswell Observatory at York University in Toronto, Ontario, Canada. Image credits: AICO, Elaina Hyde, Max Neumann

science natural sciences

All Episodes

01:01:39

20261005_From Canada to the Cosmos

Allan I Carswell Observatory Presents: York Universe ·

2026/10/06

This episode we talk about the first and most recent Canadian astronauts as well as some fun cosmological news in terms of black holes and white dwarves. With all of the interesting things happening out there in the Cosmos we also cover a bit of what you can see in the sky at night. This episode features co-hosts Arfa Ali and Mahesh Aravamudan. (Image credit: NASA) Canadian Space Agency astronaut Marc Garneau operated the Canadarm during space shuttle mission STS-97 as well as STS-77.

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01:01:00

20260928_Planetary Expeditions!

Allan I Carswell Observatory Presents: York Universe ·

2026/09/29

This episode features the first appearance by host Nakul Sethuram Ramjee as we discuss planets and exoplanets and adventure. From spacecrafts who didn't quite make it to Mars, to planets who didn't get enough spacecraft visits (Neptune) we journey out to exoplanets to discuss recent news, planets who go backwards and radio signals from planets outside our solar system. Image Credit: AICO Neptune, 2023, E.A.Hyde, Sunna Withers

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01:00:09

20260921_Photos Taken While Travelling

Allan I Carswell Observatory Presents: York Universe ·

2026/09/22

Paul and Julie revisit the birth of Ole Rømer, who demonstrated that light travels at a finite speed, and the photos taken by Voyager 1. In the news, they discuss zombie stars, hungry stars, and two pretty impressive space missions - the Nancy Grace Roman telescope and the SpaceX Starship. Episode image: The first image of the Earth and Moon in a single frame as captured by Voyager 1 on September 18, 1977 (NASA/JPL).

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01:00:39

20260914_How to Crash A Satellite Party

Allan I Carswell Observatory Presents: York Universe ·

2026/09/18

This episode features our host Dr. Hyde and a special guest co-host Cassia Bond. Cassia is an astrophysics PhD student and science communicator with a research focus on characterizing artificial satellites in near-Earth orbit. We discuss the crash clock and some possible satellite clean-up methods as well as Cassia's recent research in satellite detections at the Allan I Carswell Observatory. Image Credit: Celestrak (https://celestrak.org/events/collision/)

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01:01:30

20260831_Outer Space: Situational Awareness,...

Allan I Carswell Observatory Presents: York Universe ·

2026/09/06

This episode features soon to be MSc Sergiy Kernytsky who is joining us to talk about his astronomical and engineering research in satellites, and in particular how to find them. We discuss 'situational awareness' and his use of Event cameras as possible satellite detectors as well as a few other objects up there in our night skies. Image Credit: CTIO/NOIRLab/NSF/AURA/DECam DELVE Survey

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01:00:57

20260824_Death and Life Under the Stars

Allan I Carswell Observatory Presents: York Universe ·

2026/08/25

Julie, Maheen, and Robin reflect on the lives of Fred Hoyle and Samuel Pierpont Langley, not to mention science communication and timekeeping. Special guest Victoria Di Giovanni joins the team to talk about a very unique event held to help grieving folks heal through connection with the night sky. Image credit: June Parsons/AICO

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01:01:32

20260817_Black Hole Stars and Black Skies

Allan I Carswell Observatory Presents: York Universe ·

2026/08/18

Join Dr. Hyde and Mahesh as they welcome Arfa Ali for her first York Universe co-hosting role with a dark astronomy topic. Black Hole stars are the news of the day in this exciting episode. We talk about black skies under eclipses, share some viewing stories and dive into the news around the Quasi-Stars or theoretical black hole stars that have been observed by JWST. Image Credit: Credit: Jose-Luis Olivares, MIT

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01:01:03

20260810_Space Junk and Collision Skies

Allan I Carswell Observatory Presents: York Universe ·

2026/08/11

Join our crew for a journey in the skies. We look at our sky at night; it is meteor month in August, so there is a lot to enjoy! We also discuss a bit of history and the growing issue of space junk, whether as a threat to modern astronomy, an asset for interconnectivity, or a space traffic hazard. Image Credit: AICO, KPPO, Bruce Waters, 2026 Astronomer in Residence Program https://www.yorku.ca/science/observatory/air/astronomer-in-residence-blog/

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01:01:50

20260727_Into August we go!!! Perseids and a New Moon!

Allan I Carswell Observatory Presents: York Universe ·

2026/07/28

Join our crew for a journey in the skies. We look at our sky at night; it is meteor month in August, so there is a lot to enjoy! We also cover some fun manmade objects at the International Space Station, from cancer treatment material to semiconductors, lunar space missions from China and much more! Image Credit: AICO, KPPO, Ryan Marciniak, 2026 Astronomer in Residence Program https://www.yorku.ca/science/observatory/air/astronomer-in-residence-blog/

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01:01:31

20260720_Beginnings and Endings

Allan I Carswell Observatory Presents: York Universe ·

2026/07/21

Julie Tomé and Dr. Elaina Hyde do a deep dive into the Solar System's past and future. They discuss the Moon landings and the work of Chushiro Hayashi in This Week in Space & Astronomy History. In the news, why mirrors in space are a terrible idea if they are not telescopes, what the solar system looked like in the past, and what it might look like when the Sun dies. Episode image: Mars Opposition 2020, credit, Bruce Waters, KPPO, AICO

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01:02:17

20260713_Satellites in the Night

Allan I Carswell Observatory Presents: York Universe ·

2026/07/14

Join Dr. Elaina Hyde and Sunna Withers for an exploration of excellent (and bad) satellites both past and present. We look at the James Webb Space Telescope, Rohini Satellite 1, Euclid and talk about the proposed Reflect Orbital. Science both past and present has used both ground based and space telescopes, what will the future hold? Note: Link to Astro Fair 2026 Tickets mentioned in this episode is: https://www.yorku.ca/science/observatory/astrofair2026/ Image Credit: NASA, ESA, CSA, STScI;

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58:56

20260629_Asteroids and The Summer sky

Allan I Carswell Observatory Presents: York Universe ·

2026/06/30

With the Tunguska impact having happened over 100 years ago, June 29/30 is Asteroid day. Here we focus mainly on asteroid relate topics and some great objects we can see in the sky over the summer months.

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01:00:17

20260622_Its Summer! and some smaller solar system...

Allan I Carswell Observatory Presents: York Universe ·

2026/06/23

Mary and Julie discuss the discovery of Pluto's moon Charon, the summer solstice, then go on several side quests while discussing missions that have side quests. Image by A. Dunn from https://commons.wikimedia.org/wiki/File:Summer_Solstice_Sunrise_over_Stonehenge_2005.jpg

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01:01:48

20260615_X-ray vision for Galaxies

Allan I Carswell Observatory Presents: York Universe ·

2026/06/16

Join our host Maheen Hemani and cohost Dr. Elaina Hyde for a high-energy x-ray investigation of galaxies and history. We discuss the recent news from Chandra, MeerKat, JWST and of course York University. Did you know that the fastest wind near a supermassive black hole ever found (as of yet) at ultraviolet wavelengths was by YorkU researchers?

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01:00:55

20260608_Summer is here! Well, almost!!

Allan I Carswell Observatory Presents: York Universe ·

2026/06/09

Tune into this weeks episode to learn about how to explore the summer skies, and hear about exciting space news in our galaxy and beyond! Image: The Milky Way over the 16'' telescope at Killarney Provincial Park Observatory. Image credit: Anna Skrinnik and Sunna Withers

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01:03:07

20260601_A rocky time with asteroids and meteors

Allan I Carswell Observatory Presents: York Universe ·

2026/06/02

Rocky asteroids, planets and meteors make for dynamic objects. Tonight we talk about sky viewing for Mercury and Venus as well as asteroids and the recent Ontario meteorite. The host is Dr. Elaina Hyde and we are joined by special guest Mahesh Aravamudan, a RASC Toronto Center member and astronomy enthusiast to investigate. Image Credit: The general shape of Psyche viewed from the south pole with an ellipsoidal overlay. Its major and intermediate axes with longitudes are labeled, and three major

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01:00:11

20260525_Cutting Edge Technology

Allan I Carswell Observatory Presents: York Universe ·

2026/05/26

Julie and Maheen explore the technology that makes scientific advancement possible. From using cinematography to record solar eclipses at the turn of the last century to AI use in future space missions and using fungi to grow food in regolith, thinking outside of the box has led to some pretty amazing stuff! Episode photo: A view of the Aug. 21, 2017, total solar eclipse from Madras, Oregon. Credit: NASA/Gopalswamy

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01:02:19

20260514_Happy Mother's Day

Allan I Carswell Observatory Presents: York Universe ·

2026/05/19

This week, we look at the night sky, some space and astronomy news, and, most importantly, celebrate some of the great mothers in the field!

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01:05:51

20260504_Chasing Rainbows in the Stars

Allan I Carswell Observatory Presents: York Universe ·

2026/05/05

Spectra and Light are important to all of Astronomy as we know it today. Join special guest Dr. Thomas Morris for a history and news adventure in spectroscopy with our host Dr. Elaina Hyde. What is light? What is it used for in Astronomy, and how can amateur astronomers help? Image Credit: Fraunhofer made this copper etching in 1815, He coloured the spectra and lines as well as drew the spectral response curve above. A now standard view of spectra it was revolutionary at the time! Deutsches

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01:01:21

20260427_From One Space Telescope to Another

Allan I Carswell Observatory Presents: York Universe ·

2026/04/28

Here we talk about a few history topics and some planetary observations. Mars Express Observations https://www.esa.int/Science_Exploration/Space_Science/Mars_Express/Ash_creeps_across_Mars

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