A planetarium you can teach with
Planetary Explorer includes a Teacher mode designed for a projector, a classroom tablet, and a room with no Wi-Fi.
See Planetary Explorer →▶ Try it in your browser
Teacher mode
- Guided lessons that move the view and show one line to read aloud
- Three levels: Earth Science (intro), High School, and College / Higher Ed — each with its own lessons and questions
- An offline quiz with tap-to-answer and a score
- A printable worksheet, labelled with the class level
Built for the realities of a classroom
- No Wi-Fi needed — every map, star and label is on the device
- No ads and no accounts — safe for school networks and shared devices
- Larger labels and high contrast for projectors
- Freeze the date so a whole class sees the same sky
Lesson topics
The Solar System
Planets in order, scale, and the inner/outer divide.
Moon & Phases
Why the Moon changes shape, and tides.
Seasons
Axial tilt, day length and insolation.
The Night Sky
Stars, constellations and coordinates.
Eclipses
Shadows and the Moon's nodes.