Thursday, March 19, 2020

Burst 33 - Astronomer David Blank Comments on Episode 41

Released: 20 March 2020
Duration: 31 minutes, 42 seconds

Download the .mp3 audio file.

Astronomer David Blank responded to our invitation to comment on the Villarroel+ paper we covered in Episode 41, which he describes as "very fascinating."


The VASCO project: I. USNO objects missing in modern sky surveys and follow-up observations of a "missing star"
Dorrit Hoffleit  and her autobiography: Misfortunes as Blessings in Disguise
Bradley Schaefer and the Harvard Plates
Josh Grindlay, PI of DASCH
The Very Large Array Sky Survey
The VASCO Citizen Science Project



Host and Producer: Paul Carr
Music: Lloyd Rogers

The Wow! Signal is released undertone Creative Common Attribution license.

Tuesday, February 11, 2020

All Unseen Podcast Episodes now Available on YouTube

We have moved all our Unseen Podcast (2015-2018) episodes to YouTube. You can listen to any of them there, as well as the Unseen Pubs. Soon, we will discontinue our use of Libsyn as the repository for the Unseen Podcast, and the rss feed links will not be valid. The show notes on the blog will remain available indefinitely.

For example, here is Episode 88 with Chad Davies of the Scientific Odyssey:

Wednesday, January 29, 2020

Upcoming Moonbounce Live Streaming Event

Photo Credit Charles Duke/NASA

The Event

Multidisciplinary artist Daniela De Paulis is organizing a live moonbounce event in Scotland on the Isle of Lewis that will be held on the evening of February 8th 2020 as part of the Hebridean Dark Skies Festival. Wow! Signal Live will livestream the event with a panel of scientists and artists.

How to Watch Live

The scheduled time is 21:00 GMT. That means it will start at 4 P.M. on the East Coast of the USA, and 1 Pm on the West Coast. The live streaming event may start a little earlier than the live event. More details will be announced soon.

Following the live event, the audio from the panel discussion will be made available on our regular podcast feed at this site.

To view the live event, simply go to this YouTube link:

Edit: a video with credits and improved audio can be found here:

If you have questions for the panel, you can leave them in the YouTube chat, or at the usual Discord channel on our server.

Wednesday, January 22, 2020

Episode 44 - The Night Watch

Released: 22 January 2020
Live recording: 20 January 2020
Duration:  66 minutes 45 seconds
Thread: Astronomy and Astrophysics

Download the .mp3 audio file

Host Paul Carr, along with Daniela De Paulis and Ciro Villa welcome astronomer Stella Kafka, director of the American Association of Variable Star Observers (AAVSO). We talk about the recent and possibly unprecedented dimming of Betelgeuse, among many other astronomy topics.

This was our very first Wow! Signal Live recording. We hope to get listener questions in as part of the live experience, but we have a lot to learn about how too encourage this. Your feedback will help.

Recent light curve from AAVSO for the Red Supergiant Betelgeuse


Stella Kafka's previous (2016) appearance on this podcast
Simbad page for Betelgeuse
Astronomical Magnitude System
Yes, Aboriginal Australians Can and Did Discover the Variability of Betelgeuse

Wow! Signal Team


Host and Producer: Paul Carr
Panelists: Daniela De Paulis, Ciro Villa
Music: Claudio Nuñes, Felipe Sarro (playing Ravel)
Software: Zoom, OBS, Auphonic, Reaper, OS X Mojave
Hardware: Apple, Shure, Focusrite, Cloud, Elgato, Logitech

Sunday, December 22, 2019

Episode 43 - Adam Dipert Moves in Zero G

Released: 22 December 2019
Duration: 55 minutes, 36 seconds

Download the .mp3 audio file

Adam Dipert is a veteran circus performer and dancer who recently received his PhD in physics from Arizona State University.  He has brought his various interests together by researching human movement in microgravity. We are going to let him tell you all about that.

Adam will be presenting about this work at the Conference for Research on Choreographic Interfaces in Providence, Rhode Island, USA at Brown University, March 5-7 2020.  Link to conference here:


Flower Sticks
Zero G
Kitsou Dubois
Orienting Beyond Gravity: Training with Kitsou Dubois
Partner Stilting Acrobatics
A video of Adam in Zero G
Skylab Astronauts Doing Gymnastics in Zero G
The Froude Number
Kristina isabelle


Co-hosts: Daniela DePaulis and Paul Carr
Producer Paul Carr
Music: DJ Spooky

This podcast is released under the Creative Commons Attribution/Share-Alike license.

Wednesday, December 11, 2019

Episode 42 - Moon bouncing with Julia DeMarines

Released: 11 December 2019
Duration: 48 minutes, 30 seconds

Download the .mp3 audio file

Julia DeMarines
Co-hosts Daniela DePaulis and Paul Carr welcome Julia DeMarines (@LifeNSpace) to talk about Berkeley SETI, and Daniela has used moonbounce in her art projects, including Cogito.
bouncing radio signals off the moon. Julia is involved in a moon bounce research project for
We also get into a discussion of METI, and the importance of message composition to humans.

Guest bio:

Julia DeMarines is an Astrobiologist and science communicator working at the UC Berkeley SETI Research Center and with Blue Marble Space. She is a 2019 National Geographic Explorer and 2018 Grosvenor Teacher Fellow, and a 2019 AGU Voices for Science advocate.  Her research involves detecting life in the Universe through biosignatures and technosignatures and the ethics of sending powerful, intentional messages into space. She is passionate about inspiring the next generation of scientists and  teaches to underserved students around the world through the Ad Astra Academy. Julia also runs her own outreach events called  “Space in Your Face!” – a space variety show involving comedy, local artists, and cover songs. 
Twitter: @LifeNspace
Instagram: @mote_of_dust
Facebook: @JuliaDeMarines


Sullivan (1979), Radio leakage and eavesdropping
Sullivan and Knowles(1985), Lunar Reflections of Terrestrial Radio Leakage.
DeMarines+ (2019), Observing the Earth as a Communicating Exoplanet
The One Earth Message
The LUVOIR telescope
The HabEx Observatory
HawkEye 360
David Grinspoon's appearances on this podcast: first, second, third.
Andrew Siemion's appearances: first, second.

Follow Us on Twitter.
Our Discord Server
Dream of the Open Channel


Co-hosts: Daniela DePaulis and Paul Carr
Producer: Paul Carr
Music: DJ Spooky, Jason Robinson, George Hrab
Software: Zoom,  Loopback, Reaper, Focusrite, Auphonic, OS X Mojave
Hardware: Shure, Cloud,Focusrite, Apple.

This podcast is released under the Creative Commons Attribution/Share-Alike license.

Thursday, November 14, 2019

Episode 41 - The Vanishing Sources with Beatriz Villarroel

Released: 15 November 2019
Duration: 42 minutes, 24 seconds

Download the .mp3 audio file
Figure 11 from the Paper

Our guest on Burst 19 in 2016, Dr. Beatriz Villarroel, returns to give us an update on the vanishing star, following the release of a new paper detailing a much more ambitious project along the same lines that finds a number of new candidate objects.


Burst 19: Our Sky Now and Then
The POSS-I Survey
Chasing Disclosure (work of fiction that mentions the earlier research)

Chat with us on Discord


Host and Producer: Paul Carr
Music: DJ Spooky and Jason Robinson
Announcer: Erin Carr
This podcast is released under the Creative Commons Attribution/Share-alike license.