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During a recent screening of thermal vent clones — the ones Ng collected back in 2001 — Singhal found seven new hits with “substantial” antibacterial activity.

Some coins were to be expected: Who among us hasn’t flipped a good-luck penny into a thermal vent?

The United Nations drones have cameras that can capture still pictures and video day or night, and infrared sensors that can pick up hot spots, which around here could be a burned village or a thermal vent from a volcano.