Astronauts Talking About Viewing The Earth From The Moon, From The Overview Effect: Awe And Self-Transcendent

Comet Hyakutake

Hubble sees a cosmic caterpillar by Hubble Space Telescope / ESA

These beautiful Kelvin-Helmholtz clouds were spotted over Lincolnshire on December 19th. They form between two layers of air, one of which is moving faster than the other. Although that situation is not very unusual, the conditions have to be just right for visible clouds to form at that interface between layers, and the clouds themselves are typically short-lived. This set is particularly lovely with its smooth curves and breaking wave form. If you, like me, love these clouds but never manage to see them yourself, you can always try wearing some instead! (Image credit: A. Towriss; via BBC News; submitted by Vince D.)

Saturn as seen from its moon Enceladus, illustrated by Chesley Bonestell, 1972.

The clearest photo ever taken of Saturn

Claude Monet’s water structure and shades, II, transparent single picture version.