Johannes Kepler on the Holy Work of Astronomy
Kepler rejected the idea that the enormous scale of the cosmos suggested that mankind is less important than in the cozier Aristotelian-Ptolemaic model.
Salt of the Earth Regulates Habitability
A planet needs more than location in a habitable zone. It needs the right ingredients, and salt has a surprising role.
Intelligent Design and Planetary Timing
Enceladus is an especially fascinating case. Nearly 100 geysers of water ice are currently jetting out of its south pole at supersonic speed.
Applying the Design Filter to Hexagons
The hexagon on Saturn performs no function. Columnar basalt doesn’t say anything. Snowflakes don’t carry a message. They are mere emergent phenomena.
Why Scientists Think There Could Be Life on Europa
Jupiter’s moon Europa, somewhat smaller than Earth’s moon, may have surface water and organic chemicals, researchers say.