"For Mars alone enables us to penetrate the secrets of astronomy which otherwise would remain forever hidden from us." -Johannes Kepler

Johannes Kepler was a German astronomer, astrologer, and mathematician who was a key figure in the 17th-century scientific revolution, best know for his laws of planetary motion.

This special edition set of fountain pen inks from Colorverse was first debuted at Paperworld 2019 and honors Kepler's contributions to science with 3 new colors named for his notable works. Each set contains one 5ml bottle of each of the following colors:

• Planetary Motion (deep blue)
• Conjecture (wine red)
• Somnium (muted green)

#73 Planetary Motion

Colorverse #73 Planetary Motion from the Johannes Kepler collection is a dark desaturated blue fountain pen ink with medium shading and low red sheen. It dries in 40 seconds in a medium nib on Rhodia and has an average flow. 

#74 Conjecture

Colorverse #74 Conjecture from the Johannes Kepler collection is a dark wine red fountain pen ink with medium shading. It dries in 40 seconds in a medium nib on Rhodia and has an average flow. 

#75 Somnium

Colorverse #75 Somnium from the Johannes Kepler collection is a dark desaturated green fountain pen ink with medium shading. It dries in 30 seconds in a medium nib on Rhodia and has an average flow. 

Colorverse ink is made in Korea.