NASA’s Astronomy Picture of the Day

In today's image, we see a solar filament which erupted into a coronal mass ejection on the Sun back in 2012. The Sun has a cycle of activity that lasts about 11 years and is near the peak of that activity cycle again right now. So, we are seeing more events like this which cause aurora here on Earth like those we saw a couple of weeks ago.

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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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

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In today's image, we see the Manicouagan impact crater as seen from the International Space Station. The crater, about 100km across has worn down over the past 200 million years so that we just see the remnants of the crater in the form of a circular lake. Because of weathering and erosion, craters last a much shorter time on Earth than on our Moon.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see the star forming region known as M78 as imaged in visible and infrared light from the Euclid Space Telescope. This telescope was launched last year and will be used to study the effects of dark matter and dark energy on our universe.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see two galaxies in the process of colliding together. When galaxies collide, their gravitational fields interact so that material is pulled out in streams as we see around the galaxy on the left. The process also takes a very long time - hundred of millions of years - so we only see a single snapshot of the collision.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see an aurora from 2016 as seen over Sweden. The green color of the aurora is caused when charged particles from the Sun strike Earth's magnetic field and are funneled to the atmosphere near the north and south magnetic poles. They then excite oxygen atoms in Earth's upper atmosphere, causing the green glow.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see what is known as a cemetery globule in the foreground. This is a region of star formation which is unrelated to comets in out solar system except for the rough appearance. We also see a distant galaxy, well beyond the globule in space, but by a chance superposition, close to it in 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 date of this podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see an image of the aurora taken back on May 10 after the emission of a coronal mass ejection from the Sun by a large sunspot group crossing its face. That sunspot group has now moved around to the back side of the Sun as seen from Earth, but may last long enough to still be visible as the Sun continues to rotate. The sunspot would be back on our side of the Sun in another week or so.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see an animation created using data collected from the Juno spacecraft to simulate what it would be like to plunge into the upper atmosphere of Jupiter in the area around the Great Red Spot.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see an image of the sky looking toward the North. We see how the stars make circular paths around the North Celestial Pole which is very close to the start Polaris in the sky. We also see an aurora caused by the increased solar activity for the past week or so.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

In today's image, we see the Aurora Australis which is the aurora when seen in the southern hemisphere. That cause is exactly the same as the aurora seen in the Northern Hemisphere. The aurora have been prominent this past week because of the large sunspot group AR 3664 which has recently moved around the limb of the Sun due to the Sun's rotation.

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 podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.