Nixnox
The places where you can enjoy trully dark skies are disappearing due to light pollution. The Spanish Astronomy Society (SEA) promotes a common effort between amateurs and professionals to motivate …
Street Spectra
Turn your smartphone into a scientific instrument to analyze lamps colors and their spectra using a diffraction grating.
The Star-Spotting Experiment (Stjärnförsöket)
Our use of artificial light has dramatically changed the environment in large parts of the world. Scientific studies have shown unexpected and worrying effects on the biology of many organisms …
Dark Sky Meter
The app (iPhone only) uses the camera to collect light at night. The aim is to provide a cheap alternative to expensive light meters, help (amateur) astronomers and ecologists. When …