If you look at any star atlas published before 1930, you will see what appear to be random lines defining the constellations. Before this date, constellation boundaries had not been formalized. Modern ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...

In early April, we could possibly enjoy a bright comet shortly after sunset. It’s known as C/2026 A1 (MAPS). It’ll make an ...

Florian Winkler’s mesmerizing map of the northern sky takes celestial mapping to new heights. For this Behind the Map article, we connected with Winkler to learn how he created such an elegant and ...