Ep. 615: Planet 9

After Pluto lost its planethood, we were down to 8 planets. But there’s growing evidence of another world (or worlds) out beyond the orbit of Pluto. Is Planet 9 out there and how will we find it? Could there even be a Planet 10?

Up next: Ep 617, 29 Oct 2021

Icy Moons and Dwarf Planets

Watch live on YouTube
Fridays, 3pm EST / noon PST

Hosted By

Fraser Cain
Universe Today

Dr. Pamela L. Gay
Planetary Sci. Inst.

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15 seasons and more than 600 episodes await.

Ep. 606: Time Dilation – Skipping Through Time

Ep. 606: Time Dilation – Skipping Through Time

Have you ever wanted to be a time traveler? Good news! You’re time traveling right now. Into the future at one second per second. Too long? Don’t want to wait? Good news, Einstein’s got you covered. Today, let’s talk about the weird world of time dilation.

Ep. 605: Sounding Rockets

Ep. 605: Sounding Rockets

Last week we talked about balloon-based astronomy. This week we’re going to talk about putting balloons on rockets and making observations mid-flight. Welcome to the world of sounding rockets.

Ep. 604: Balloon Astronomy

Ep. 604: Balloon Astronomy

When you think about the world’s observatories, I’m sure you’re imagining huge telescopes perched atop mountain peaks, or space telescopes like Hubble. But you might be surprised to learn that some telescopes are carried high into the atmosphere on board balloons. What can they accomplish?

Ep. 603: The New Colors of Radio – Getting Longer

Ep. 603: The New Colors of Radio – Getting Longer

Last week we talked about how new telescopes and techniques are allowing astronomers to explore the shortest wavelengths of light. This week, we go to the other end of the electromagnetic spectrum, and explore the longer radio waves which are now accessible to astronomers.