Why is the sky blue?
Light, air and your eyes: investigate how they work together to colour the sky.
Start the mission
- Discover
- Observe
- Take the challenge
Hello explorer!
Choose a mission and launch into space.
Learn, observe and understand the Universe through short missions, real images and simple words.
Choose my age
Explore learning paths
Space adventures, one clear step at a time.
7 minThe Solar SystemMeet the Sun, planets and their worlds.To discover
5 minThe night skyFind stars and constellations.To discover
8 minGalaxies and beyondTravel far beyond our Solar System.To discover
6 minExplore MarsFollow the rovers on the red planet.To discover
Tonight’s challengeLook up at the sky tonight!Choose something to observe and share your discovery.Plan an observation
The sky in numbers
LIVEEvery number shows its source. If a service does not respond, we say so.
EXPLORATION MAP
Choose your route.
Four ways in, from our planetary neighbourhood to the farthest observable space.
Solar System
Observe the Sun, compare the planets and follow objects crossing our cosmic neighbourhood.
Human exploration
Follow the ISS almost live and explore the missions shaping space exploration.
Deep Universe
Discover Webb, exoplanets and the sky visible from your location.
Learn
Read the latest official stories and test what you know.
TRUSTED DATA
No decorative numbers.
Changing indicators are fetched on the server, cached for a clear duration, and shown with their source. If a service does not respond, SolarScope says so instead of inventing a replacement value.
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