Episodes

In today's image, we see a time-lapse video clip from the Juno spacecraft as it made its 16 close approach to the planet Jupiter. Juno has a highly elliptical orbit which allows it to come in briefly to study the planet's cloud structures, but spend most of its time well away from the intense radiation near the planet. 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...

In today's image, we see several images of the total solar eclipse which occurred on April 8. The central page showing details of the solar corona only visible during an eclipse. The other two images show what is known as the diamond ring effect which occurs just before and after a total eclipse when only a tiny portion of the Sun is visible. 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 im...

In today's image, we see the Great Carina Nebula which is a large star forming region about 7500 light years from Earth - it is much larger than the closer Orion Nebula. The bright star Eta Carinae is one expected to become a supernova at some time in the future. 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 archiv...

In today's image, we see the spiral galaxy NGC 1232. We see this in a face-on position which gives us a great view of its spiral arms. We can see the pink color of hydrogen gas excited by the ultraviolet light from hot stars as well as the blue light from the many stars that have formed recently within those spiral arms. 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 direct...

In today's image, we see the total solar eclipse of April 8. Also visible in the sky and shown in this image were two planets - Venus and Mercury. Two comets can also be seen including comet Pons-Brooks which was not as bright as many had hoped. 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 i...

In today's image, we see a portion of the Vela Supernova Remnant. This is the remnant of a star that would have been seen to explode here on Earth over ten thousand years ago. The expanding filaments have been slightly enriched in heavier elements which will eventually form seed material for the next generation of stars. 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 direct...

In today's image, we see two images of M82 also known as the Cigar Galaxy. This is a starburst galaxy which is undergoing a burst of star formation due to an interaction with another nearby galaxy. Recent images from Webb are teaching us more about the central regions of they galaxy and also raising some intriguing new questions. 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 websi...

In today's image, we see a video clip showing the end of the total solar eclipse of April 8 of this year. As the video starts, we can see a couple of prominences around the edge of the Sun. As the Sun first starts to appear, we see the effect called Baily's Beads which appear then sunlight is coming show valleys on the limb of the Moon and finally the Sun starts to emerge and overwhelms the image with its brightness. My podcasts are available in video form through this YouTube Channel. This Po...

In today's image, we see multiple images of the eclipse of April 8. These are projected through the leaves of a palm tree which acts as a bunch of pinhole cameras each of which projects its own image of the eclipsed Sun on to the ground. 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 ...

In today's image, we see multiple images of the solar eclipse from April 8. Around the limb of the Moon, we see a number of pink solar prominences as well as glimpses of the solar surface through what are known as Bailey's Beads. 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 t...

In today's image, we see seven images from the solar eclipse of April 8. Starting from the upper left shortly after the Moon first started to cover the Sun, through totality where the solar corona is visible and down to the bottom right taken shortly before the Moon ceased covering any of the solar 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: Astrono...

In today's image, we see two planets - one on either side of the eclipsed Sun. To the right is the planet Venus, currently visible in the morning sky just before sunrise. To the left is the planet Jupiter currently visible shortly after sunset. Normally, these cannot be seen during the day. But, when the Sun is eclipsed, the sky becomes dark enough for them to be visible. My podcasts are available in video form through this YouTube Channel. This Podcast is an authorized New Media Mirror Site f...

In today's image, we see the total solar eclipse which occurred yesterday over parts of North America. The solar eclipse occurs when the Moon passes in front of our Sun temporarily blocking out its light. Here we see the Sun's corona as well as the planet Venus which would otherwise not be visible. 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 Pictur...

In today's image, we see images of comet Pons-Brooks as observed over nine days in March of this year. We can see the distinct changes that have occurred in the tail even over just a single day - helping us to understand how the tails of a comet like this are produced. 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 ...

In today's image, we see images from the total solar eclipse of 2017. We can view the progression as the Moon covers more and more of the Sun until it is completely covered at the center allowing the solar corona to be seen. The next eclipse will be tomorrow (April 8) and will be visible over parts of North America. 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...

In today's image, we see the spiral galaxy known as M51. In this image, the spiral arms have been digitally modified to unwind them using logarithms. The ordinary spiral arms form a logarithmic spiral which can be unwound digitally giving the ams a straight line 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. You can use...

In today's image, we see two images of the corona of the Sun stretched out so they can be easily compared to one another. On the top is an image from the solar eclipse of 2023 and on the bottom an image from the solar eclipse of 2017. We can see that the Sun was far more active in 2023 as compared to 2017. 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...

In today's image, we see comet Pons-Brooks at it was seen on March 30. The comet is approaching its perihelion or closest approach to the Sun on April 21. In addition, it could be visible during the day to those who happen to be located on the path of the total solar eclipse which occurs next Monday (April 8) across parts of North America. 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...

In today's image, we see the remnant left behind by a star which was observed to explode back in the year 1181. This appears to be an unusual type of nebula classified as a Type Iax which occurs when two white dwarf stars merge together and explode. 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 t...

In today's image, we see the corona of our Sun. This is the atmosphere of the Sun and is normally invisible because of the brightness of the Sun itself. However, during an eclipse, our Moon passes in front of our Sun and blocks out its light. This allows the corona to be seen. 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 ...

In today's image, we see an image from the Event Horizon Telescope which allows astronomers to image the regions around the central black holes of galaxies including the one at the center of our Milky Way. Here we see it in polarized light which gives us a better understanding of the strong magnetic fields in the 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 direct...

In today's image, we see a total eclipse of the Sun observed from an airplane in 2021. Sometimes the eclipses occur at points on Earth that are not easy accessible and this is one way such an eclipse can be observed. Another total solar eclipse will be visible from much of eastern North America in just over a week on April 8. 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 d...

In today's image, we see a page of astronomy lecture notes dating back to 1490. The upper diagrams show the explanation of the occurrence of eclipses under the Ptolemaic model of the universe. At the bottom are a model of the geocentric universe, and a calendar to calculated the date of Easter Sunday in the Julian Calendar. 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...

In today's image, we see one of the four large moons of Jupiter, known as Europa. This is the smallest of the Galilean moons of Jupiter, but actually has more water than the entire Earth. The Europa Clipper, scheduled to launch in October is planned to orbit the moon and study it in more detail - especially to try to find if life could exist in the oceans below the icy surface. My podcasts are available in video form through this YouTube Channel. This Podcast is an authorized New Media Mirror ...