A volcano on a Galapagos island that is home to a species of critically endangered lizard has erupted for the second time in seven years, national park officials said Friday.
Environment
Jan 07, 2022
0
24
For weeks they dreamt of returning to the homes they fled when a volcano erupted on the Spanish island of La Palma.
Environment
Jan 06, 2022
0
17
As soon as he heard that La Palma's volcano had erupted, Australian geologist Matt Pankhurst loaded his microscope into his car and raced to catch a ferry to the Spanish island.
Earth Sciences
Dec 18, 2021
0
103
In 2021, researchers at the California Academy of Sciences added 70 new plant and animal species to the tree of life, enriching our understanding of Earth's complex web of life and strengthening our ability to make informed ...
Plants & Animals
Dec 16, 2021
1
39
The eruption of Mount Semeru in Indonesia on Saturday tragically claimed the lives of 22 people, with another 22 still missing and 56 injured. More than 5,000 people have been affected by the eruption, and more than 2,000 ...
Earth Sciences
Dec 07, 2021
1
36
An international team of researchers has found evidence that suggests possible volcanic activity involving Venuses' Idunn Mons. In their paper published in The Planetary Science Journal, the group describes the evidence they ...
The dusty surface of the moon—immortalized in images of Apollo astronauts' lunar footprints—formed as the result of asteroid impacts and the harsh environment of space breaking down rock over millions of years. An ancient ...
Planetary Sciences
Dec 01, 2021
0
356
Seismic data collected in Elysium Planitia, the second largest volcanic region on Mars, suggest the presence of a shallow sedimentary layer sandwiched between lava flows beneath the planet's surface. These findings were gained ...
Space Exploration
Nov 23, 2021
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210
Iceland's Fagradalsfjall volcano has not spewed lava since September 18, the day it became the country's longest eruption in 50 years, but scientists say it's too early to call the eruption over.
Environment
Nov 18, 2021
0
41
A volcano erupting for the past five weeks on the Spanish island of La Palma is more active than ever, officials said Monday, after new lava flows following a partial collapse of the crater threatened to engulf previously ...
Environment
Oct 25, 2021
0
8
Lava is molten rock expelled by a volcano during eruption. When first expelled from a volcanic vent, it is a liquid at temperatures from 700 °C to 1,200 °C (1,300 °F to 2,200 °F). Although lava is quite viscous, with about 100,000 times the viscosity of water, it can flow great distances before cooling and solidifying, because of both its thixotropic and shear thinning properties.
A lava flow is a moving outpouring of lava, which is created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock. The term lava flow is commonly shortened to lava. Explosive eruptions produce a mixture of volcanic ash and other fragments called tephra, rather than lava flows. The word "lava" comes from Italian, and is probably derived from the Latin word labes which means a fall or slide. The first use in connection with extruded magma (molten rock below the Earth's surface) was apparently in a short account written by Francesco Serao on the eruption of Vesuvius between May 14 and June 4, 1737. Serao described "a flow of fiery lava" as an analogy to the flow of water and mud down the flanks of the volcano following heavy rain.
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