Postcard found in a book.
I don’t know how you feel but to me, it is very important to feel like you are in good hands.
Light, unlike any other kind of wave ever encountered, does not need a medium to carry it along. Light is a lone traveler. Light can travel through empty space.
Brian Greene, The Fabric of the Cosmos (via whats-out-there)
Duomo of Pisa, Italy Photographer: Cintia Soto