A map to the heavens marks the pinpoints of light in the night sky. Let it guide your way through the night sky and beyond. Each cover in the Dark Matter series celebrates the beauty found in darkness and the scenes made by the faintest light. Let your creativity run wild in the black pages of this The Night Sky Notebook. This extra-thick 120 gsm black paper works great with gel pens (for the brightest colors, look for ones formulated to work on dark media, like our Supernova Pens), metallic pens, pastels, and even some paints!