When the moon is in the umbra, it is hidden from the sundra."
Don Machholz
"It is one of the most interesting features on the moon."-Don Machholz
Comets came from all over the place.DON MACHHOLZ Podcast-45-Map-1Download Podcast-45-Map-2Download Podcast-45-A-Decade-of-Comets-Part-6Download
“Nearly 90,000 days in one year, I wonder how many holidays they have?”Don Machholz Podcast-88-Map-1-Evening-SkyDownload Podcast-88-Map-2-Morning-SkyDownload Podcast-88-Map-3-NeptuneDownload
