This story originally appeared on Grist and is part of the Climate Desk collaboration. Ariana Tibon was in college at the University of Hawaii in 2017 when she saw the photo online: a black-and-white picture of a man holding a baby. The caption said: “Nelson Anjain getting his baby monitored …
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Most people interpret radiation as a bad thing—but it isn’t always. In fact, radiation is a very normal phenomenon. For now, let’s just say that radiation is when an object produces energy. When a material is radioactive, it emits energy either as particles or electromagnetic waves. The particles are usually …
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On a spring day in 1978, a fisherman caught a tiger shark in the lagoon surrounding Enewetak Atoll, part of the Marshall Islands in the north Pacific. That shark, along with the remains of a green sea turtle it had swallowed, wound up in a natural history museum. Today, scientists …
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