Glaciers | smithsonianmag.comhttps://www.smithsonianmag.com/rss/tag/glaciers/RSS feed for GlaciersenThu, 06 Aug 2026 20:26:01 +0000Why Does Antarctica's Blood Falls Spew Ruby Red Water? Microbes Offer New Clues About the Geologic Feature's Ancient Originshttps://www.smithsonianmag.com/smart-news/why-does-antarcticas-blood-falls-spew-ruby-red-water-microbes-offer-new-clues-about-the-geologic-features-ancient-origins-180989271/The falls contain saltwater rich with iron, which oxidizes and turns red when exposed to air. A new study provides further evidence that the brine probably comes from ocean water trapped when flood waters retreated millions of years agoThu, 06 Aug 2026 20:26:01 +0000https://www.smithsonianmag.com/smart-news/why-does-antarcticas-blood-falls-spew-ruby-red-water-microbes-offer-new-clues-about-the-geologic-features-ancient-origins-180989271/