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.
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Episodes
2026 April 27 - Comet R3 PanSTARRS Behind Satellite Trails 27.04.2026 3:26
In today's image, we see Comet R3 PanSTARRS hiding among a number of satellite trails in this 10 minute exposure 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 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 ph...
2026 April 26 - Mystic Mountain Monster Being Destroyed 26.04.2026 3:54
In today's image, we see a star forming region in space. This region is slowly being eaten away by the new stars forming within it. 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...
2026 April 25 - The Persistence of Sunlight 25.04.2026 3:39
In today's image, we see ,stipple images of our Sun as it sets. The distortion is caused by sunlight passing through distinct layers of Earth's 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 . You can use the archive link b...
2026 April 24 - Young Moon and Sister Stars 24.04.2026 3:30
In today's image, we see a conjunction go the young crescent moon and the Pleiades star cluster. 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 dat...
2026 April 23 - The Large Scale Structure of the Universe 23.04.2026 4:42
In today's image, we see a map from DESI - Dark Energy Spectroscopic Explorer which observed 47 million galaxies to give us a view of the universe on the largest scales. The idea is to help us better understand the role of dark energy in the expansion of the universe. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD...
2026 April 22 - Earthiest with an iPhone 22.04.2026 4:17
In today's image, we see a video taken by Artemis II Commander Reid Wiseman, recording video as the Earthiest behind the Moon. The Artemis II spacecraft passed behind the Moon, making Earth appear to set. 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 Pi...
2026 April 21 - Three Sky Arches over Snowy Alps 21.04.2026 3:39
In today's image, we see three arches in the sky over the Alps. Two are of our galaxy - one toward the center and another opposite the center. The other is the zodiacal light - dust in our own solar system scattering sunlight. 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...
2026 April 20 - Comet R3 PanSATRRS over a Himalayan Valley 20.04.2026 4:05
In today's image, we see Comet R3 PanSTARRS over the Himalayan mountains. The comet made its closest approach to the Sun yesterday and is now on its way out of the 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 at: Astronomy Picture of the Day . You can...
2026 April 19 - Eye on the Milky Way 19.04.2026 3:33
In today's image, we see a lagoon from Chile, imaged to give the appearance of a great eye looking out toward 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...
2026 April 18 - PanSTARRS and Planets 18.04.2026 3:58
In today's image, we see comet PanSTARRS as well as the planets Mercury and Mars in the sky. PanSTARRS is nearing its closest approach to our Sun very soon and may brighten enough to be visible without binoculars for viewers in the southern hemisphere in early May. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. Y...
2026 April 17: M82: Starburst Galaxy with a Superwind 17.04.2026 3:39
In today's image, we seethe spiral galaxy known as M82 or the Cigar Galaxy. The red going out perpendicular to the disk of the galaxy is a super wind - caused by many supernovae and stars with strong stellar winds. 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: As...
2026 April 16 - South Celestial Tree 16.04.2026 3:57
In today's image, we see star trails around the South Celestial Pole. Unlike the North Celestial Pole, there is no bright star currently located near the South Celestial Pole. 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 us...
2026 April 15 - The ISS Transits the Moon 15.04.2026 4:10
In today's image, we see the International Space Station and our Moon close together in the sky. A transit occurs when one astronomical object passes in front of another which can happen occasionally when the ISS passes in front of the Moon, Sun or other object. My podcasts are available in video form through this YouTube Channel . This Podcast is an authorized New Media Mirror Site for APOD. You...
2026 April 14 - The Long Wispy Tail of Comet R3 (PanSTARRS) 14.04.2026 3:42
In today's image, we see the long tail of comet R3 (PanSTARRS) as it stretches back across 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 the Day . You can use the archive link below the image to select the photo corresponding to the...
2026 April 13 - NGC 602 and Beyond 13.04.2026 3:46
In today's image, we see the newly forming star cluster known as NGC 602 in the Small Magellanic Cloud. It is sometimes compared to pearls inside an oyster. 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...
2026 April 12 - Comet R3 (PanSTARRS) Brightens 12.04.2026 3:33
In today's image, we see an image taken a couple of days ago of Comet R3 showing a long ion tail. The comet will make its closest approaches to the Sun and Earth over the next couple of weeks and may brighten enough to be visible to the unaided eye. 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 th...
2026 April 11 - Artemis II: Flight Day 6 11.04.2026 4:07
In today's image, we see the Orion spacecraft known as Intrepid as it flies around the far side of the Moon on April 6, setting the record for the greatest distance from Earth by humans. 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 ....
2026 April 10 - Exploring the Antennae 10.04.2026 3:51
In today's image, we see two colliding galaxies known as the Antennae for their distinct appearance and specifically their tidal tails stretching out to either side. 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 arch...
2026 April 09 - Destruction of Comet C/2026 A1 (MAPS) 09.04.2026 3:39
In today's image, we see a video put together from about 40 hours' worth of data showing the destruction of a comet as it passes close to 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 can access the image and website directly at: Astronomy Picture of the Day . You can use the archive link below the...
2026 April 08 - Earthset 08.04.2026 4:26
In today's image, we see the crescent Earth as it is about to set behind the limb of our Moon as seen by the Orion spacecraft from the Artemis II mission a couple of days ago. The craft is now on its way back to 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 directly at...
2026 April 07 - NGC 4592: The Blue Horsehead Reflection Nebula 07.04.2026 3:22
In today's image, we see the reflection nebula known as the Blue Horsehead. This is a dusty region around. hot, blue star. 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...
2026 April 06 - The Path of Artemis II 06.04.2026 3:54
In today's image, we see the path to be taken by the Artemis II spacecraft as it leaves Earth, loops around the Moon and then returns to Earth. The entire mission will take about 10 days. 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...
2026 April 05 - NGC 3310: A Starburst Spiral Galaxy 05.04.2026 3:26
In today's image, we see the galaxy known as NGC 3310 - an example of a spiral galaxy which is undergoing a burst of star formation because of a recent interaction with another 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 . Y...
2026 April 04 - Hello World 04.04.2026 4:01
In today's image, we see the vies from the Orion spacecraft of the Artemis II mission which is taking humans on a trip around our moon for the first time since 1972. Here, we look back at Earth, seeing the entire Earth at once. 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 di...
2026 April 03 - Caught in the Web: Visualization of a Black Hole Merger in the Tarantula Nebula 03.04.2026 3:42
In today's image, we see s combination of two images - one is the image of the Tarantula Nebula, the other a simulation of a black hole merger. 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 ima...
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