A network of Cold War-era infrasound sensors can help scientists reconstruct trajectories of falling space objects.

Add Yahoo as a preferred source to see more of our stories on Google. Solar-powered balloons are recording mysterious sounds below human hearing in the stratosphere. The unknown crackling could be the ...

A Sandia National Laboratories solar-powered hot air balloon taking flight bears sensors including a GPS tracker and reusable infrasound sensor. This flight supported past infrasound research at ...

The map shows infrasound stations and earthquakes considered in this study. Not all stations operated contemporaneously, but all were active for some period between 2018 and October 2022. Image from ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An infrasound station array ...

Sensors that detect changes in atmospheric pressure due to ground shaking can also obtain data about large earthquakes and explosions that exceed the upper limit of many seismometers, according to new ...