Justice Department files show Jeffrey Epstein deposited sperm with California Cryobank and signed a 2016 contract leaving the samples to his estate; the material’s whereabouts remain unclear.

A new multi‑university preprint finds just 10–15 minutes of AI help can reduce persistence and independent problem‑solving. The finding complicates how schools and workplaces should use chatbots.

A UCLA‑led phase 3 trial found adjuvant selpercatinib dramatically lowers recurrence risk in a rare lung‑cancer subtype. The results could reshape testing and care.