In this photo provided by Janice Wei, lava fountains from an eruption of Kilauea volcano on Wednesday, Jan., 15, 2025, in Hawaii. (Janice Wei/NPS via AP) In this photo provided by Janice Wei, lava ...

Kilauea volcano in Hawaii started erupting for the fourth time, sending lava fountains 200 ft (60m) into the air. Rocks and tephra (volcanic debris) can be seen falling, with geologists collecting ...

A view of a lava fountain from an eruptive vent inside Halemaʻumaʻu Crater from 10:05 a.m. Wednesday, Jan. 15, 2025, at the summit of Kīlauea volcano in Hawaiʻi Volcanoes National Park on the ...

The only way to see the Trevi Fountain in a quiet, uncrowded moment is to watch the 1960 Fellini film "La Dolce Vita," but don’t let crowds keep you away. The 18th-century masterpiece is fed by ...

At 6:30 a.m. on Dec. 31, 2024, the eruption continued in Kaluapele (Kīlauea caldera) with 50–80 foot (15–25 meter) lava fountains from two vents. A Hawaiian Volcano Observatory field crew ...

The atomic clocks can provide the unprecedented precision in the determination of time and the SI second is experimentally determined by measuring the 133 Cs hyperfine transition with atomic fountain ...

Researchers at the University of California San Diego have been able to explain how adding small amounts of cesium or rubidium salt to perovskite-based solar cells can increase performance by ...

He’s made a real-time-clock module controlled by a rubidium frequency standard, and since it also includes a GPS clock he can track local time dilation effects by comparing the two. Surplus ...