NASA’s Astronomy Picture of the Day

These podcasts are commentary and discussions of images posted on the Astronomy Picture of the Day website.

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2023 October 28 - Ghosts of Gamma Cas

Posted October 28, 202300:03:37

In today's image, we see the region around the bright star Gamma Cas, one of the brighter stars in the constellation of Cassiopeia. The red glow in...

2023 October 27 - Encke and the Tadpoles

Posted October 27, 202300:03:54

In today's image, we see Comet Encke - a periodic comet that returns to the inner solar system every 3.3 years and made its closest approach to the...

2023 October 26 - Orionids in Taurus

Posted October 26, 2023

In today's image, we see two Orionid meteors in the sky. The Orionid meteor shower is one of two that occurs each year that is associated with debris...

2023 October 25 - Gone in 60 Seconds: A Green Flash Sunset

Posted October 25, 202300:03:42

In today's image, we see a video watching the Sun set below the horizon. We will note the distortions around the limb of the Sun caused by Earth's atmosphere....

2023 October 24 - Arp 87: Merging Galaxies from Hubble

Posted October 24, 202300:03:46

In today's image, we see a pair of galaxies in the process of merging - a process which can take a billion years or more. Galaxy mergers are quire common...