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NBC News producer shares personal journey battling Alzheimer’s

6 days 10 hours ago
Senior Coordinating Producer Sue Kroll travels the world covering the news, but tonight she shares her own story about her battle to fend off Alzheimer’s and the steps she’s taking to avoid the brutal disease. NBC News’ Senior National Correspondent Kate Snow reports Sue’s story.

Microbes at the end of the Earth: Antarctica's hidden biodiversity

6 days 11 hours ago
When we think about Antarctica, many people imagine penguins, seals and whales. However, the majority of Antarctica's scientific wonders cannot be seen without a microscope. These microbial communities form the foundation of Antarctic ecosystems yet remain largely invisible to most visitors.