Like stony meteorites, glass beads break apart when travelling at high speeds through the air, experiments show (left). But under the right conditions, the fragments can stay together in a dense swarm that can still gouge a crater on the ground (right) (Image: Peter Schultz et al/Brown
Like stony meteorites, glass beads break apart when travelling at high speeds through the air, experiments show (left). But under the right conditions, the fragments can stay together in a dense swarm that can still gouge a crater on the ground (right) (Image: Peter Schultz et al/Brown