The 365 Days of Astronomy

Hosted by our Director, Avivah Yamani!
Today we are traveling beyond our solar system to talk about one of the most exciting discoveries in modern astronomy. Exoplanets!
 
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Hosted by Tony Darnell.
From July 17, 2023.
The James Webb Space Telescope Has confirmed its first exoplanet, LHS 475 b, in the southern constellation Octans, using the transit technique. The TESS satellite detected the possible presence of it and JWST's NIRSpec instrument has confirmed the observation. The planet is 99% the diameter of Earth & 91.4% of Earth's mass. So your first hope is that it's a second Earth. The orbital period is only 2 days, though, so it's assuredly tidally locked & very hot. It's unlikely to have an atmosphere either, so you can forget about finding life there.
 
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too! 
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations. 
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

http://www.astronomycast.com/archive/
From May 25, 2009.
Last week (May 18, 2009) we took a peek into the tiny world of quantum mechanics, and its unintuitive, but very accurate mathematical predictions. And although we all appreciate the physics lesson, you're probably wondering what this all has to do with astronomy. Well, today we bring it all home and explain how quantum mechanics has given astronomers one of the most powerful tools they have to study the nature of the cosmos.
 
Spectra — an excellent overview by James B. Kaler
Doppler Shift — UCLA
Continuum Radiation — Physics Myths
The sun is green! From The Color of the Sun — Scientific Blogging
Blackbody radiation — GSU
Elemental composition of the Sun — About.com
Deuterium — Wiki
Grism is a combination of a prism and grating to create a dispersed spectrum.
Spectroscopy and Astronomy — UCLA
Slit Spectroscopy — Gemini Telescope
Balmer Series — Internet Encyclopedia of Science
Hydrogen Alpha Explained — Solar Observing (H-alpha spectral line is at 656.3 nanometers)
Using Laser Combs to Find Exoplanets –– Universe Today
Hydrogen Spin Flip Transition — Wolfram
Zeeman Spectral Line Splitting — NOAO
[These are very old links, so some may be dead… Rich]
 
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too! 
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations. 
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org
From January 2026.
Today's 2 topics:
- In the distant past things in our solar system were very much more wild and violent than they are today. 4.5 billion years ago a Mars sized object called Theia impacted Earth producing our Moon. Scientists are able research this event using the current chemical compositions of the Earth and Moon.
 
- Since in its early history the Earth's surface was hot and lifeless it is likely that asteroids formed in the same era as Bennu delivered the raw materials for life when they impacted our home planet long ago.
 
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too! 
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations. 
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher.
 
In this episode of The Cosmic Savannah, Dan and Francois sit down with Dr. Nick Erasmus to explore the ATLAS Digital Assistant and the growing role of Artificial Intelligence and Machine Learning in astronomy. They discuss how these technologies are reshaping the modern astronomical landscape and what this means for the role of astronomers in the years ahead.
 
Dr. Nick Erasmus, a returning guest now in his third appearance on the show, works closely with the ATLAS telescopes and leads key components of the Intelligent Observatory initiative at the South African Astronomical Observatory (SAAO). His work focuses on automating follow-up observations across telescopes, helping to streamline and modernise the observing process.
 
Using the new ATLAS Digital Assistant as a starting point, the conversation quickly broadens into a vibrant discussion about AI in science more generally. Dan, Francois, and Nick share their perspectives on the opportunities, challenges, and future directions of AI in astronomy.
 
Join us for a timely and engaging discussion at the intersection of astronomy and cutting-edge technology!
 
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too! 
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations. 
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].