SCIENCE NEWS

• What new COVID variants mean for schools is not yet clear
• Bulk–disclination correspondence in topological crystalline insulators
• Decoding and perturbing decision states in real time
• The latest on Biden’s science team: biologist named as top adviser
• Electrons broken into pieces at crystal defects

• New starfish-like fossil reveals evolution in action
• Hematopoietic stem cell transplants may provide long-term benefit for people with MS
• Brain pressure disorder that causes headache, vision problems on rise
• Late rainy season reliably predicts drought in regions prone to food insecurity
• On the origins of money: Ancient European hoards full of standardized bronze objects