Technology, science and art mingle in a new exhibit, “Tiny Giants: Marine Microbes Revealed on a Grand Scale,” on display through March 31 at the Portland Public Library’s Lewis Gallery, 5 Monument Way.

The invisible world of marine microbes is revealed through this photo art exhibit. The photos highlight “the intricate details of microscopic creatures that are vital to the oxygen we breathe, the food chain essential from fish to whales to humans, and that mitigate the damaging effects of climate change,” according to a press release.

Scientists at Bigelow Laboratory for Ocean Science in East Boothbay took the photographs at three different scales, using three different types of microscopes. The photos represent the technological and scientific achievement needed to capture microscopic marine microbes that are invisible to the naked eye.

The exhibit is free and open to the public. Library hours are 10 a.m. to 7 p.m. Monday through Friday; 10 a.m. to 6 p.m. Saturdays; and 10 a.m. to 5 p.m. Sundays.

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