When a hypervelocity particle enters the top surface of an aerogel collector, it makes a track many times its own size as it slows and stops in the aerogel.

• 当一个超高速微粒进入气凝胶收集器的顶部表面时，它会减速并停在气凝胶内部并制造一个比自身大许多倍的轨迹。