A Cochise County dog is Arizona’s first New World screwworm case. What pet owners should check, and how the 20-km zone affects ranchers and wildlife.

Two ice cores pulled from the same Tibetan ice cap 23 years apart tell the same climate story, and that agreement is now at the center of a long-running scientific dispute. A new study in Science ...

The idea that comets seeded early Earth with the raw ingredients for life is one of science's more romantic origin stories. A new study suggests that, at least for one key molecule, the odds were poor ...

Researchers tracked 87,577 adults who wore wrist sensors that measured light exposure, and followed them for a median of 8.1 years. People who averaged daytime light above 1,000 lux, about the ...

DNA work behind the ‘tiny elves’ mushroom species found misidentified in U.S. collections. What it means for foragers and wild mushroom safety.

The fight over the hepatitis B birth dose often sounds like a debate about choice. Doctors who oppose ending the universal shot say it is really about something else — a safety net. Even when the ...

A great white shark swam straight toward a surfer at Pismo Beach on California's Central Coast on Wednesday, Oct. 28, then turned away at the last moment and splashed him with a sweep of its body, ...

A new model finds that seawater intruding under Thwaites Glacier could double its sea-level contribution to 30 mm by 2100. What it means for U.S. coasts.

King tides ran up to 1.7 feet above predictions in Southern California, and Newport Beach warns tides could near 9 feet on Christmas Eve.

Rubin Observatory found 2026 ED138, a possible dwarf planet beyond Pluto hidden in images since 2016, and astronomers must now measure its size.

Flood watches cover West Texas and southeast New Mexico as Vance’s moisture brings heavy rain. Halloween timing, rain totals, and safety tips by state.

A search dog was able to rescue an elderly woman who got trapped in rubble following the deadly earthquake in Japan this New Year. Authorities said that the woman, who is in her 80s, had been trapped ...