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by Dean Regas
Join Dean Regas, astronomer, author, and space expert on a journey through the stars! Guests from all over the globe bring their knowledge and passion about today’s latest scientific discoveries and advancements. From eclipses to supernovas, from rockets to rovers; there’s a whole universe to explore! Dean is the author of “How to Teach Grown-Ups About Pluto” and “100 Things to See in the Night Sky” and was the longtime host of PBS' Stargazers television program. Looking Up is a production of Cincinnati Public Radio.Subscribe:AppleSpotifyNPRiHeartRadioAmazonPocket CastsRSS Feed
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- 1 weeks ago20 min
Launching a Probe into the Sun (with Dr. Joe Westlake)
The sun is our closest laboratory for understanding how stars work. Decades of space missions have studied the sun, yet its outer atmosphere, the corona, remains a mystery. NASA's Parker Solar Probe was built to change that. Dean Regas talks with Dr. Joe Westlake, heliophysics division director at NASA Headquarters, about what we're learning from humanity's closest approach to a star.
- 3 weeks ago19 min
Downloading the Universe (with Dr. Mario Jurić)
Astronomers say the shiny new Vera C. Rubin Telescope will be able to map the entire universe with remarkable precision in no time. Already, it has located tens of thousands of asteroids close to home. Dean Regas chats with Dr. Mario Jurić, the solar system lead scientist for the Vera Rubin Observatory in Chile, to find out more.
- Aug 14, 202619 min
Who Voted to Demote Pluto? (with Dr. Bob Stencel and Dava Sobel)
What really happened when Pluto was demoted? Twenty years after the International Astronomical Union's 2006 vote, Dean Regas revisits the decision that reshaped our solar system, with insider accounts from science writer Dava Sobel and astronomer Bob Stencel.
- Jul 31, 202618 min
A Total Eclipse of Dean's Heart (with Gísli Sigurðsson)
Chasing solar eclipses is a great excuse to travel. In 2026, August 12th's eclipse presents a challenge: which beautiful destination offers the best view? The path of totality will be visible in both Spain and Iceland. Join Dean as he makes his decision, and pays tribute to a poignant song he's come to love.
- Jul 17, 202619 min
Posing for a Picture with the Earth (with astronaut Tracy Dyson)
Still buzzing with excitement from the Artemis II launch, Dean Regas waxes poetic about that special view of our home planet that only astronauts get to see. A chat with NASA astronaut Tracy Dyson is the closest experience to the real thing.
- Jul 3, 202617 min
What did NASA find on Asteroid Bennu? (with Dr. Daniella Mendoza DellaGiustina)
What is a potentially hazardous asteroid like? Up close and personal? Very few space missions have visited asteroids and fewer still have touched an asteroid and brought some of it back to Earth. Dean chats with NASA's OSIRIS-REx mission's image processing lead scientist, Dr. Daniella Mendoza DellaGiustina, to learn more. Let’s go to the asteroid Bennu!
- Jun 19, 202617 min
Bringing the universe down to Earth (with Kat Troche)
How do you feel about the universe? Is it scary, you know with how large it is? How far way everything is? Is it intimidating when astronomers talk about time in millions and billions of years? Okay, on the surface it’s intimidating. But there are lots of people out there who have made it their mission, sometimes dedicating years to volunteering, and a few well-paying careers, just to bring the universe down to Earth. Dean Regas chats with Kat Troche, project coordinator for the Astronomical Society of the Pacific, to learn more.
- Jun 5, 202620 min
Is most of the universe actually invisible? (with Dr. Stacy McGaugh)
By some counts as much as 96% of everything in the universe comes from dark matter and dark energy. And, up to now, both are completely invisible. Few in the field question this theory, but could there be alternatives? Dean chats with Professor Stacy McGaugh from the Department of Astronomy at Case Western Reserve University to learn more.
About Looking Up
Join Dean Regas, astronomer, author, and space expert on a journey through the stars! Guests from all over the globe bring their knowledge and passion about today’s latest scientific discoveries and advancements. From eclipses to supernovas, from rockets to rovers; there’s a whole universe to explore! Dean is the author of “How to Teach Grown-Ups About Pluto” and “100 Things to See in the Night Sky” and was the longtime host of PBS' Stargazers television program. Looking Up is a production of Cincinnati Public Radio.Subscribe:AppleSpotifyNPRiHeartRadioAmazonPocket CastsRSS Feed
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Frequently Asked Questions
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How often does Looking Up release new episodes?
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What topics does Looking Up cover?
Looking Up covers topics including Science, Astronomy. Our AI identifies the specific themes in each episode and highlights what matters most to you.
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