Puzzles
Earth's moon at ~77% illumination - CALVENDO photo puzzle
A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...
View full detailsBubble Nebula / NGC7635 - CALVENDO photo puzzle
A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...
View full detailsAndromeda Galaxy / M31 - CALVENDO photo puzzle
A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...
View full detailsWonders of the cosmos - CALVENDO photo puzzle
A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...
View full detailsRosette Nebula / NGC2237 - CALVENDO photo puzzle
A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...
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