Eavesdropping on Arches: Rock’s Internal ‘Hum’ Reveals Its Health

Just like a heart monitor, the “hum” of Mesa Arch shows that it’s in good health, and safe from collapse for now. Read more how scientists are assessing the internal health of our arches!


A spectacular rock arch in Utah is safe from collapse for now, according to a study that used a new technique to listen to the arch’s natural “hum” to measure its internal health.