Credit: ESA–G. Porter

Asteroid researcher Kristiane Schmidt and ESA data technician Andrea Toni inspect a camera fixed to the five-storey-high rooftop of ESA's technical heart in the Netherlands, keeping a constant watch for fireballs – very bright meteors burning up in the atmosphere.

This small fisheye atop the ESTEC technical centre in Noordwijk on the North Sea coast is one of a network of cameras stretching across Europe, called the Fireball Recovery and Planetary Inter Observation Network, FRIPON.

FRIPON cameras work together to plot the course of meteorites entering Europe's skies, supporting efforts to retrieve fresh-fallen meteorites for study.