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 January 31 - The Variable Nebula NGC 2261 31.01.2025

In today's image, we see an example a a variable nebula which changes brightness and appearance in timescales of just a few weeks. 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...

2025 January 30 - Hydrogen Clouds of M33 30.01.2025

In today's image, we see an image of M33, also known as the Triangulum Galaxy, which is one of the three large spiral galaxies in our Local Group of galaxies. Here, we see the red H II regions highlighted. 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 January 29 - Dust Shells Around WR 140 from Webb 29.01.2025

In today's image, we see a series of rings around a Wolf-Rayet star. They appear be be expelled every eight years, which may be related to the orbital period of the star and its companion. 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 January 28 - Comet G3 ATLAS over Uruguay 28.01.2025

In today's image, we see the comet known as G3 ATLAS. The nucleus of the comet appear to have broken apart, but the comet remains visible to observers in the southern hemisphere 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...

2025 January 27 - Pleiades over Half Dome 27.01.2025

In today's image, we see the Pleiades star cluster as imaged over half Dome in Yosemite National Park. 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 corresponding to t...

2025 January 26 - The Many Tails of Comet G3 ATLAS 26.01.2025

In today's image, we see the prominent tails of the comet known as G3 ATLAS which is currently visible just after sunset for those living in the southern hemisphere 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 January 25 - Stardust in the Perseus Molecular Cloud 25.01.2025

In today's image, we see a portion of the Perseus Molecular Cloud. Here we see the dust in the region as well as a reflection nebula, Herbig-Haro object and other signs of star formation. 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 January 24 - Comet G3 ATLAS: A Tail and a Telescope 24.01.2025

In today's image, we see comet ATLAS as seen a few days ago with a prominent tail. The nucleus appears to be disintegrating from its close approach to the Sun a week and a half 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 Picture of the Day . You...

2025 January 23 - NGC 7814: Little Sombrero 23.01.2025

In today's image, we see the galaxy known as the Little Sombrero for its appearance and resemblance to the Sombrero Galaxy. This is a spiral galaxy, like our Milky Way seen edge-on. 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...

2025 January 22 - The North America Nebula 22.01.2025

In today's image, we see the North America Nebula where the outline resembles the eastern coast of North America. This is an example of an emission nebula in a star forming region. 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 c...

2025 January 21 - Comet ATLAS over Brasilia 21.01.2025

In today's image, we see comet ATLAS in the sky over Brasilia. As the comet moves away from the Sun, it will be visible in the southern hemisphere before it fades and becomes too faint. 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 January 20 - Comet ATLAS Rounds the Sun 20.01.2025

In today's image, we see comet ATLAS as Imaged by the SOHO spacecraft studying the Sun. The comet just made its closest approach to the Sun and is currently lost in the Sun's glare. If it remains bright as it moves away, it may be visible in the southern skies. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You c...

2025 January 19 - Titan Touchdown: Huygens Descent Video 19.01.2025

In today's image, we see the descent video from the Huygens lander from 2005 which is became the first craft to land on an object in the outer solar system. In this case, the large moon of Saturn, Titan. Total is the only moon to have an significant atmosphere in the solar system. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror...

2025 January 18 - Full Moon, Full Mars 18.01.2025

In today's image, we see the full moon as the planet Mars passed behind it in what is known as an occultation. 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 correspond...

2025 January 17 - Supernova Remnant Cassiopeia A 17.01.2025

In today's image, we see the supernova remnant known as Cassiopeia A. This is the remnant of a massive star that would have been seen to explode as viewed from Earth several hundred 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 Picture of the...

2025 January 16 - M83: The Southern Pinwheel 16.01.2025

In today's image, we see the spiral galaxy known as M83 or the Southern Pinwheel. 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 corresponding to the date of this podca...

2025 January 15 - Wolf Moon Engulfs Mars 15.01.2025

In today's image, we see the January full moon, known as the Wolf Moon which has just passed directly in front of Mars in what is called an occultation. 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 belo...

2025 January 14 - North Star: Polaris and Surrounding Dust 14.01.2025

In today's image, we see the North Star, also known as Polaris which is the star which happens to be located close to the North Celestial Pole on the sky. The deep exposure brings out the Integrated Flus Nebula and surrounding dust seen in this region of 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...

2025 January 13 - Comet ATLAS Before Sunrise 13.01.2025

In today's image, we see comet ATLAs as seen before sunrise recently. While currently rather bright, it is also hidden by the glare of the Sun. We shall see over the next week or two if it will survive the passage near the Sun and if so, how bright it will become as it gets farther away. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media...

2025 January 12 - Mimas: Small Moon with a Big Crater 12.01.2025

In today's image, we see Mimas, one of the moons of Saturn. The large crater, named Herschel likely came close to destroying the moon during its 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 directly at: Astronomy Picture of the Day . You can use the archive link belo...

2025 January 11 - Sky Full of Planets 11.01.2025

In today's image, we see a panoramic view of the sky, showing 6 of the planets visible. The only planet not in the image would be Mercury. These planets will be visible in the sky over much of the coming month. 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: Astron...

2025 January 10 - Young Stars, Dark Nebulae 10.01.2025

In today's image, we see a region in the constellation of Taurus where young stars are in the process of formation. The dark nebulae contain protostars. In the area, we also see young T Tauri stars - stars just completing their formation. 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...

2025 January 09 - Peculiar Galaxies of Arp 273 09.01.2025

In today's image, we see Arp 273, a pair of peculiar galaxies. These galaxies are being distorted by the gravitational interaction with one another, giving them their unusual appearance. 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 January 08 - Supernova Remnants Big and Small 08.01.2025

In today's image, we see two supernova remnants. The two remnants pictured are about the same size, but only appear different because they are at different distances. The are are also about the same age as seem from Earth. 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 directl...

2025 January 07 - A New Year's Aurora and SAR Arc 07.01.2025

In today's image, we see an image of the sky showing an aurora to the left and a SAR (Stable Auroral Red) arc to the right. 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 pho...

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