Cosmic Ideas
Why the Moon Keeps Changing Its Shape
Why the Moon keeps changing its shape is really a question of viewing angle. Learn the lamp model and read each phase…
The reading room
All pieces
Explore the sky, its celestial inhabitants and the ideas that help us make sense of it. Each piece begins with a question worth taking time over.
Skywatching
Binoculars or Naked Eye? Two Ways to Meet the Night Sky
Binoculars or naked eye: learn how each changes the view, what binoculars can reveal about the Moon and star fields…
Human Cosmos
When the North Star Became a Wayfinder
When the North Star became a wayfinder, Polaris offered travellers a steady northern reference; learn how its…
The Sky
The Constellation Is Not a Star Cluster
A constellation is a pattern seen from Earth, not necessarily a star cluster. Learn how distance, perspective and a…
Skywatching
A Slow Evening with One Bright Planet
A slow evening with one bright planet makes a planet’s apparent motion easier to notice, with a simple observing plan…
Our point of view
Wonder begins with looking closely
The sky is vast, but attention can start with one bright point or a familiar shape. We pair clear explanations with room to pause and look again.