Since 2021, all dominant Covid variants have descended from Omicron. The 2023–2024 booster was tailored for the XBB.1.5 strain of Omicron, but JN.1 is about as different from XBB.1.5 as Omicron was...
Stretching for nearly 80 miles across the seafloor of the central Arctic, the Langseth Ridge is craggy, barren, and generally inhospitable. And it should be: Unlike more productive oceans, few nutrients swirl...
