Robert M Wagner

NASA’s Astronomy Picture of the Day

These podcasts are my discussion of NASA's Astronomy Picture of the Day. These are brief (3-5 minute) audio summaries of the picture posted on NASA's Picture of the Day website: APOD. Video versions of these are available on YouTube. I use these as the introduction to each of my introductory astronomy classes. Students will be able to access them here to review what was discussed in class. I appreciate any comments or suggestions which can be sent to: wagnerastronomy@gmail.com.

Author

Robert M Wagner

Category

Education

Podcast website

podcast.show

Latest episode

Jul 11, 2026

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Episodes

2025 August 20 - Perseid Meteors from Durdle Door 20.08.2025

In today's image, we see a number of Perseid meteors captured in various images and combined together in one picture. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use the archive link below the image to select the photo cor...

2025 August 19 - Giant Galaxies in Pavo 19.08.2025

In today's image, we see a number of giant galaxies in the constellation of Pave. This include the largest known spiral galaxy as well as a giant elliptical galaxy. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use the archi...

2025 August 18 - NGC 1309: A Useful Spiral Galaxy 18.08.2025

In today's image, we see the galaxy known as NGC 1309. This galaxy is said to be useful since there have been multiple supernovae as well as Cepheid variable stars known in it. This gives us multiple ways to determine the distance and helps to calibrate the distance scale of the universe. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media...

2025 August 16 - Asperitas Clouds over New Zealand 17.08.2025

In today's image, we see an unusual type of cloud known as an Asperitas cloud as imaged about 20 years ago, but not formally identified as a distinct cloud type until about a decade later. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day...

2025 August 16 - A Cool GIF of a Perseid Meteor 16.08.2025

In today's image, we see an animated GIF of a Perseid meteor from this past week. We can also see the trail (persistent train) left behind as the meteor vaporized in the upper atmosphere. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day...

2025 August 15 - Moonlight, Planets, and Perseids 15.08.2025

In today's image, we see a couple of meteors from he recent Perseid shower. In addition, we see the planets Jupiter and Venus which are currently visible in the morning sky. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use...

2025 August 14 - M13: The Great Globular Cluster in Hercules 14.08.2025

In today's image, we see the globular cluster known as M13. This is one of the larger and brighter clusters which is actually visible to the unaided eye under very good seeing conditions. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day...

2025 August 13 - Trapezium: In the Heart of Orion 13.08.2025

In today's image, we see the central portion of the Orion Nebula, focusing on the Trapezium star cluster. The brightest of these stars emits the ultraviolet light which powers the entire nebula. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of t...

2025 August 12 - Perseids from Perseus 12.08.2025

In today's image, we see a number of Perseid meteors from the 2024 Perseid Meteor Shower. The 2025 shower is happening now, although less prominent because of the Moon which will brighten the sky. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of...

2025 August 11 - Closest Ever Images Near the Sun 11.08.2025

In today's image, we see images from the Parker Solar Probe. These are the closest images of the Sun ever obtained, only a few solar diameters from our Sun's surface. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use the arc...

2025 August 10 - Zodiacal Road 10.08.2025

In today's image, we see the zodiacal light which is cause by dust within our solar system that scatters sunlight back to Earth. Recent studies have suggested that this dust comes from comets within our own solar system. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly...

2025 August 09 - Interstellar Interloper 3I/ATLAS from Hubble 09.08.2025

In today's image, we see comet 3I/ATLAS which is currently visiting our solar system from interstellar space. It will pass about as close as the orbit of Mars before heading back out into the depths of space. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronom...

2025 August 08 - Dawn of the Crab 08.08.2025

In today's image, we see images showing the morning sky this year in July as well as what the sky would have looked like in July of 1054. The difference is that in 1054, a supernova was visible - bright enough to be seen during daylight for several weeks. This year, we do not have a supernova, but Venus is in roughly the same location on the sky. My podcasts are available in video form through thi...

2025 August 07 - The Double Cluster in Perseus 07.08.2025

In today's image, we see the double open star cluster known as h & chi Persei. This is a relatively young pair of open clusters which formed from the same molecular cloud about 13 million years ago. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Pict...

2025 August 06 - Meteor Before Galaxy 06.08.2025

In today's image, we see a meteor passing in front of the Andromeda galaxy on the sky in this image from 2016. This image was taken during the peak of the Perseid Meteor Shower that year. The Perseids will be peaking again this coming week. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image a...

2025 August 05 - NGC 6072: A Complex Planetary Nebula from Webb 05.08.2025

In today's image, we see an image of the planetary nebula known as NGC 6072. This nebula shows unusual complexity which may be due to the central star being in a multiple star system as well as having undergone multiple episodes of mass loss. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image...

2025 August 04 - Blue Arcs Toward Andromeda 04.08.2025

In today's image, we see recently discovered blue arcs near the Andromeda Galaxy in the sky. These arcs have been found to be a new class of object known as a Ghost Planetary Nebula. This is an older planetary nebula where much f the material is no longer glowing, except for some parts in the blu arc and some of the red glow of hydrogen here. My podcasts are available in video form through this Yo...

2025 August 03 - Milky Way and Exploding Meteor 03.08.2025

In today's image, we see a meteor which explodes in the sky which was images while take the photo of our Milky Way galaxy. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use the archive link below the image to select the phot...

2025 August 02 - Fireflies, Meteors, and Milky Way 02.08.2025

In today's image, we see our Milky Way Galaxy across the middle of the image, top to bottom. In addition, we see sever meteors and a large number of trails from fireflies. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use th...

2025 August 01 - Small Dark Nebula 01.08.2025

In today's image, we see a Bok Globule, which is a small, dark nebula in space. Within the globule, stars are in the process of forming although still hidden away from our view by the surrounding material. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy P...

2025 July 31 - Supernova 2025rbs in NGC 7331 31.07.2025

In today's image, we see the spiral galaxy known as NGC 7331. Wishing it, a supernova is marked which was discovered earlier this month. This is an example of a Type Ia supernova which are key distance indicators in astronomy. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website dir...

2025 July 30 - Coronal Loops in the Sun 30.07.2025

In today's image, we see four images of solar prominances taken over the past year or so. These are formed with the magnetic field of the Sun lifts material of Sun's surface. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day . You can use...

2025 July 29 - A Helix Nebula Deep Field 29.07.2025

In today's image, we see the planetary nebula known as the Helix Nebula in a deep, 12 hour exposure through a 14 inch telescope. A planetary nebula is the end state for a star, much like our own Sun. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture...

2025 July 28 - Collision at Asteroid Dimorphos 28.07.2025

In today's image, we see a short clip showing the collision on the asteroid moon Dimorphos. This was part of the DART mission to see if we would be able to change the orbit of the moon by a specified amount through the impact. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website dir...

2025 July 27 - Lightning over the Volcano of Water 27.07.2025

In today's image, we see lightning in the sky over the Volcano of Water. Lightning forms when electrical charges are separated within clouds and then discharge violently, with columns of air being heated to temperatures higher than that of the surface of our Sun. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You...

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