The 365 Days of Astronomy

365DaysOfAstronomy.org 4254 - EVSN - On Background: The Anatomy of a Comet

The 365 Days of Astronomy podcast launched in 2009 as part of the International Year of Astronomy. This community podcast continues to bring you day after day of content across the years. Everyday, a new voice, helping you see the universe we share in a new way. This show is managed by Avivah Yamani, edited by Richard Drumm. This podcast is funded through Patreon.com/CosmoQuestX and produced out of the Planetary Science Institute.

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Episodes

04 Sep 2026

03 Sep 2026

02 Sep 2026

01 Sep 2026

31 Aug 2026

30 Aug 2026

29 Aug 2026

28 Aug 2026

27 Aug 2026

26 Aug 2026

25 Aug 2026

24 Aug 2026

23 Aug 2026

22 Aug 2026

21 Aug 2026

20 Aug 2026

19 Aug 2026

18 Aug 2026

17 Aug 2026

16 Aug 2026

15 Aug 2026

14 Aug 2026

13 Aug 2026

12 Aug 2026

11 Aug 2026

10 Aug 2026

09 Aug 2026

08 Aug 2026

07 Aug 2026

06 Aug 2026

05 Aug 2026

04 Aug 2026

03 Aug 2026

02 Aug 2026

01 Aug 2026

31 Jul 2026

30 Jul 2026

29 Jul 2026

28 Jul 2026

27 Jul 2026

26 Jul 2026

25 Jul 2026

24 Jul 2026

23 Jul 2026

22 Jul 2026

21 Jul 2026

20 Jul 2026

19 Jul 2026

18 Jul 2026

17 Jul 2026

The 365 Days of Astronomy

Episodes

EVSN - On Background: The Anatomy of a Comet

Actual Astronomy - The Observer's Calendar for September

Awesome Astronomy - Holy Flipping Galaxies Batman!

Deep Astronomy - The Most Distant Galaxy Ever Measured

Astronomy Cast Ep. 8: Meteor Showers. Yes, the Sky is Falling!

Travelers in the Night Eps. 371 & 372: Kiwi Nights & Close Ones

Space Stories - Syzygy, When Worlds Line Up

EVSN - After Hours #8: Making Moons & Getting Cratered With William K Hartmann

Guide To Space - Are Aliens Watching Us & How Could We Hide? With Dr. David Kipping

Deep Astronomy - NASA's TESS Finishes First Year of Exoplanet Science Operations

Cheap Astronomy - Dear CA #138: In Space!

Astronomy Cast Ep. 101: Advanced Propulsion Systems

Travelers in the Night Eps. 369E & 370E: Night Vision & Double Comet

Actual Astronomy - Messier Objects for August

Space Stories - The Fastest Star in the Milky Way

EVSN - After Hours: Doing Big Science With Light Tools & Guest Dr. Danny Jacobs

Awesome Astronomy - The Eclipse & the Perseids

Ask A Spaceman Ep. 278: What's A Good Story About Chandrasekhar?

Astronomy Cast Ep. 118: Sky Surveys

Travelers in the Night Eps. 367 & 368: Moons of Florence & Roving Venus

Astroman - E is for Eclipse

EVSN - After Hours: International Moon Day 2026 With guest Jekan Thanga

Guide To Space - Where Do Comets Come From? Exploring the Oort Cloud

Equatorial Sky Guide - August 2026

Cheap Astronomy - Dear CA Ep. 137: Space Missions

Astronomy Cast Ep. 160: Eclipses

Travelers in the Night Eps. 365E & 366E: Spotting Meteors & Mars Rocks

NOIRLab - The Start of the LSST

EVSN - After Hours: Space Rocks Collected for Science With Guest Dr. Rhonda Stroud

Actual Astronomy - The Observer's Calendar for August 2026

Ask A Spaceman Ep. 277: What's It Like to Travel Near the Speed of Light?

Awesome Astronomy - August Part 2: Jodrell Bank Murder Club

Astronomy Cast Ep. 85: Detectors

Travelers in the Night Eps. 363E & 364E: House Sized Space Rocks & Jupiter

Space Stories - Betelgeuse Was Never Alone

EVSN - Betelgeuse Smaller Than Previously Calculated, Still A Mystery

UNAWE Space Scoop - A Blazing Hot World With A Buzzing Secret

Guide To Space - Betelgeuse Is Still Dimming! And We Have the Pictures to Prove It

Awesome Astronomy - Eclipse Girl Summer!

Astronomy Cast Ep. 89: Adaptive Optics

Travelers in the Night Eps. 361E & 362E: Newest Moon & Tiny Beasts

The Cosmic Savannah Ep. 84: Celebrating 10 Years of IDIA

EVSN - Black Holes, Giant Galaxies & A Baby Planet

Actual Astronomy - Messier Objects For July 2026

Guide To Space - Where Are All The Alien Robots? The Chilling Idea Of Von Neumann Probes

Ask A Spaceman Ep. 276: What Would Happen if the Sun…Stopped?

Astronomy Cast Ep. 58: Inflation

Travelers in the Night Eps. 899 & 900: Hitch Hiking an Asteroid to Mars & Earth Life From Mars

AstroMan - D for Dark Sky Protection

EVSN - Astronomy Asks: How Did You Get There?