The Japan Agency for Marine-Earth Science and Technology says it will conduct a test to excavate the deep seabed off a remote Tokyo island and collect clay-like sediment rich in rare earths. https://www.japantimes.co.jp/news/2025/12/24/japan/deep-sea-rare-earth-extraction/?utm_medium=Social&utm_source=mastodon #japan #oceans #rareearths #tech