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

Links

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

Credits:

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.

Links:

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

Chat with us on Discord

Credits:

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.

Wednesday, October 16, 2019

Our YouTube Channel.

We are now using all our audio podcasts to our  YouTube Channel. There are only 3 items there now, but much more content is planned, Subscribe and you'll be notified when we have new videos up there.


Tuesday, October 15, 2019

Episode 40 - Extraterrestrial Languages


Released: 16 October 2019
Duration: 54 minutes, 51 seconds

Download the .mp3 audio file

Extraterresrial Languages is a forthcoming book about the human quest to craft messages that can be understood across interstellar distances. We may want to tell ET about  ourselves, or it may be help ET send message to us that we will know how to interpret.

At the end, we also spend a couple of minutes catching up with Daniela de Paulis.

Daniel Oberhaus is a staff writer at Wired Magazine, where he covers space and energy. His first book, Extraterrestrial Languages, will be released by MIT Press on October 22, 2019. 

Support the podcast at Patreon.com.

Links

MIT Press Page for Interstellar Languages
Follow Daniel Oberhaus on Twitter

Daniela de Paulis
The 2017 Sonar message
There is Here
The Risks of METI and Religious Aliens
Marvin Minsky: Communication with Alien Intelligence
The Question: the ontological status of mathematics

Follow us on Twitter
Our YouTube Channel

Credits

Host and Producer: Paul Carr
Co-Host: Daniela De Paulis
Music: DJ Spooky, Jason Robinson, George Hrab
Announcer: Erin Carr


Cogito in Space - Reportage teaser from Sandro Bocci on Vimeo.

The Wow! Signal is released under the Creative Commons Attribution/Share-Alike license


Sunday, September 29, 2019

Episode 39 - Sofia Sheik and The Nine Axes


Released: 29 September 2019
Duration: 49 minutes, 52 seconds

Download the .mp3 audio file

Download Sofia's paper here: https://arxiv.org/abs/1908.02683

A conversation with SETI researcher Sofia Sheikh about how we The 9 axesshould evaluate technosignature search strategies. We cover three examples of technosignature searches and their relative advantages.

Sofia Sheikh is a third-year graduate student at the Pennsylvania State University working with Dr. Jason Wright. She did her undergraduate work at the University of California, Berkeley, where she became involved with the Breakthrough Listen Initiative. Her work incorporates both theoretical approaches to the Search for Extraterrestrial Intelligence (SETI) and observational radio searches for technosignatures. She intends to be the first woman to complete a SETI PhD thesis.

Links

The Nine Axes of Merit
Sofia Sheik's Twitter Page
Andrew Siemion on SETI at the SKA
Breakthrough Listen
The Truth about Alien Megastructures
Sonar Calling GJ273B

Credits

Host and Producer: Paul Carr
Announcer: Erin Carr
Music: DJ Spooky, Erika Lloyd, Jason Robinson
Hardware: Shure, Audio Technica, Pro Art, Behringer, Focusrite, Apple.
Software: Skype, Loopback, Reaper, Auphonic Desktop
Hosting: Libsyn



Tuesday, August 6, 2019

Plotting the Boyajian's Star Light Curves - it's all on GitHub (and reddit)

I've been plotting the light curves for Boyajian's Star since we first had any significant data from AAVSO. Back then (2015, early 2016) we were seeing a downward trend, but had no idea that the trend would level off and a series of weird dips would begin in 2017. After that - some the color bands have shown a slight brightening trend, and others have looked quite flat on average. The fact that we are seeing different trends in different colors tells us something about the nature of Where The Flux is hidden, although I have yet to see a model that explains everything.
Boyajian's Star as observed by AAVSO and ASAS-SN in V and R bands. The dashed vertical lines are dips.
Right now, the TESS space telescope is observing a patch of the sky that includes Boyajian's Star. We should have those high-cadence data in a month or two, and I will of course be naively plotting it and puzzling over it.

If you would like to see the data I plot or the R scripts I plot it with, please feel free to go over the GitHub: https://github.com/pdcarr/Boyajians_R

On GitHub I have all the data I've accumulated in the data folder, so you don't have to go look for it. I keep it up to date as best I can. I use R to plot and fit the data because R is free, robust, and pretty easy to script. As always, there is more than one way to do it. I will consider accepting pull requests, BTW.

Over on reddit, we try to keep everyone up to date on what the light curve is up to. The subreddits to look on are KIC8462852 and KIC8462852_Analysis. As we discussed on our last Burst, there is an ongoing project initiated by Tabby to track the long term trend in the star as function of color using a steady cadence of data from Las Cumbres. You can still get involved with that if your are interested.

Monday, February 18, 2019