Scientists are using infrasound to detect and track falling meteoroids and space debris, as presented at the European Geosciences Union General Assembly.
Infrasound, a type of low-frequency sound, is produced when meteoroids or space debris break apart and create shock waves known as bolides.
Elizabeth Silber from Sandia National Laboratories studied infrasound signals to reveal the paths of objects entering Earth’s atmosphere, using data from infrasound stations.
Infrasound can reliably track objects entering the atmosphere steeply, but faces challenges in tracking objects entering more horizontally, highlighting the importance of improving monitoring for space debris.