An unusual form of cell death called ferroptosis can sweep over embryonic tissues in a wave-like manner to ensure proper muscle development — evidence that ferroptosis has a role in normal physiology.

A reconstruction of the occurrence of plague in a large family tree from Neolithic Sweden indicates that 12 of 38 family members were infected in three separate waves — a potential explanation for a mysterious collapse in northern Europe’s population five millennia ago.

Fast-moving stars have been discovered in the middle of the nearby star cluster ω Centauri using two decades of Hubble Space Telescope imaging. The stars offer evidence of a long-sought intermediate-mass black hole.

Amyloid-β peptides and tau proteins form filaments in the brain in Alzheimer’s disease. Using an electron microscopy approach to visualize thin slices of brain tissue in 3D, these filaments can be seen in their native environment.