Four positive stories to start your morning: (1) Boston extends its fare-free bus program — and the data explains why; (2) Delhi records its cleanest Jan–May air in eight years; (3) "POMbranes" — a filter with perfectly uniform one-nanometer pores; (4) Georgia's women win a second straight NCAA outdoor track title.

Four positive stories to start your morning: (1) LEAD — West Virginia & Troy reach the College World Series for the first time; (2) Tribeca Festival's record-breaking 25th edition closes; (3) Stanford blocks a "gerozyme" and regrows knee cartilage; (4) 30-year study: ~90–120 min/week of strength training is the high-value zone.

Four positive stories to start your morning: (1) A power company replanted nearly half a million trees — and 91% survived; (2) For the first full month on record, U.S. solar out-produced coal; (3) A teenager won UK Young Engineer of the Year for a medical-delivery drone; (4) NASA's Roman telescope may launch early — and could find 100,000 new worlds.

Four positive stories to start your morning: (1) LEAD; (2) Innovation/Aerospace; (3) Community/Housing (underused-category anchor); (4) Health/Endocrinology.

Four positive stories to start your morning: (1) Sudan & South Sudan eliminate maternal & neonatal tetanus; (2) Wheelchair half-marathon records in Chicago (Romanchuk & McFadden) — Sports/Para-athletics; (3) EXCAP home-exercise program reduces "chemo brain"; (4) 40-million-year-old ant revealed in Goethe's amber via synchrotron CT.

Four positive stories to start your morning: (1) Cobalt's hidden topological states; (2) Floreana giant tortoise returns; (3) Four first-time World Cup nations; (4) China's electric heavy trucks tip.

Four positive stories to start your morning: (1) AI-designed universal coronavirus vaccine clears first human trial; (2) Low-temperature hydrogen catalyst cuts cost; (3) "House Made of Dawn" — largest Native American art survey at the New-York Historical — Culture/Museums; (4) Three Stanley Cup Final records in one game.

Four positive stories to start your morning: (1) Ocean protection crosses 10%; (2) Europe's largest 3D-printed affordable apartment building; (3) LEGO Foundation pledges $97M to the IRC for kids in conflict zones; (4) Two molecules repaired nerve damage in MS models.

Four positive stories to start your morning: (1) Octopuses use mirrors to find food they can't see; (2) Europe sets a new dam-removal record; (3) Roman bridge found in the Aare riverbed; (4) Mirra Andreeva wins the French Open.

Four positive stories to start your morning: (1) "Another Wonderland": rescued WPA Alice murals open at MCNY; (2) MLK Center opens North End satellite food pantry, Newport RI; (3) PRIMA retinal implant restores central vision in advanced AMD; (4) EPFL shrinks a tabletop ultrafast laser onto a chip.