In today's image, we see our inner solar system with the orbits of Mercury, Venus, Earth, and Mars identified. The other orbits are those of more than a thousand Potentially Hazardous Asteroids. These are asteroids that are large enough to cause significant damage if there were to impact Earth as well as having an orbit that will bring them close enough to Earth to make them a potential danger.

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: wagnerastronomy@gmail.com

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