Citizen-science project
Globe at Night
A worldwide campaign to measure light pollution by having people compare the faintest stars they can see — often in Orion — against a set of star charts, and report what they see. The result is a global, year-on-year map of the brightening night sky.
Highlights
- ›Mapping light pollution from millions of naked-eye reports
Methods, objects & tools
Knowledge connections
- Associated withDark-Sky Park
- Associated withOrion
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.