Satellite navigation is essential to everything from tracking your morning jog to landing air ambulances. But as reliance on satellite navigation grows, so do the risks associated with its interruption, natural or intentional. In its pursuit of strengthening European resilience in navigation, the European Space Agency (ESA) took part in Jammertest.
The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the Universe), states that Earth and humans do not occupy a special or privileged place in the Universe. In cosmological terms, this essentially means that Earth is representative of the norm, and life is likely to exist throughout the cosmos. While our efforts to find extraterrestrial life, a field of study known as astrobiology, have yielded no results so far, these efforts have been limited in scope. As a result, scientists are forced to speculate based on the only planet known to support life—i.e., Earth.

