Gus, Halifax’s 104-year-old gopher tortoise, has started eating again after surgery. For his keepers, a bite of banana was a major recovery milestone.

Teghaza 001 looked like a routine Mars meteorite. Then scientists found a 4.1-billion-year-old crust sample altered by ancient Martian water.

A leather pocketbook tied a long-lost sailor to Harry Peglar, but his clothing suggested another identity. A 2026 DNA study has now resolved the contradiction while leaving the expedition’s wider mysteries open.

A census of 37 dwarf galaxies found that most of the oxygen their stars produced is missing. The mystery is how far it traveled.

Chemical traces in an Aratasaurus fossil point toward ancient blood, but experts disagree about whether the tiny structures are red blood cells.

NASA is investigating Voyager 1’s October communications pause as the spacecraft approaches one light-day from Earth on November 18.

A government debrief records a striking black-triangle sighting. Its caveats, missing measurements and a new reporting correction deserve equal attention.

Tiny trout can need protection before ordinary injections are practical. A silk microneedle design tackles the underwater delivery problem—but farm-scale use still needs work.

Four volunteers emerged from NASA’s Mars simulation after 378 days of delayed messages and isolation. They even formed a band—and their work is not finished.

Patrick Stewart, the Shakespearean actor who defined Captain Picard and Professor X for generations, has died at 86. We remember the humanity he brought to genre storytelling.