Abstract: This study presents a compact dual-band dual-sense circularly polarized (CP) fragmental patch antenna that advanced by an improved simulated-annealing-based optimization algorithm. This ...

MANILA, Philippines – Lava from Mayon Volcano was observed flowing in three gullies after 35 consecutive days of effusive eruptions, the Philippine Institute of Volcanology and Seismology (Phivolcs) ...

The Noachian epoch (∼4.1–3.7 Ga) on Mars was a formative period of its evolution marked by intense magmatic activity, pervasive surface weathering, and the extensive deposition of sedimentary deposits ...

UNREST. Pyroclastic density currents or “uson” are shown in this photo of Mount Mayon taken by the Mayon Volcano Observatory on Monday (Feb. 9, 2026). The Philippine Institute of Volcanology and ...

Hot gas, ash, and rock raced down the Mi-isi Gully in Albay on Monday, Feb. 9, as Mayon Volcano produced the largest pyroclastic density currents (PDCs) of its 2026 eruption. In an update early ...

MANILA, Philippines — Mayon Volcano in Albay has generated its largest pyroclastic density current or PDC, with a brownish plume that rose one kilometer above the crater and reached as far as four ...

MANILA, Philippines — Since showing increased activity earlier this year, Mayon Volcano generated its "largest" pyroclastic density current so far, with an ash plume reaching up to 1,000 meters on ...

The largest pyroclastic density current (PDC) or uson in Mayon Volcano was generated on Monday morning, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said. The ongoing PDC was ...

The largest pyroclastic density current, locally known as “uson,” from Mayon Volcano was recorded on Monday, Feb. 9 at 10:35 a.m., traveling about four kilometers down the Mi-isi Gully, the Philippine ...

The investigative minds at How to Survive investigate volcanic forces, toxic gases, and survival constraints within a pyroclastic flow. Rock the Country festival: Artists dropping out amid Kid Rock ...

A giant hole in Central Aceh Regency, Aceh Province, did not appear suddenly. It is a phenomenon of land movement triggered by geological activity and exacerbated by weather conditions and the ...