(PhysOrg.com) -- The Earth's magnetic poles flip around every 200,000 years or so, with north becoming south and vice versa. Normally, the process takes 4-5,000 years and it ought to be impossible for the flip to be much ...
A volcanic eruption in Iceland has transformed a tranquil green valley into an ominous-looking scene, its first dark secrets beginning to emerge as volcanologists suggest the eruption could last longer than previously thought.
Environment
Mar 25, 2021
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Earth's magnetic field seems steady and true—reliable enough to navigate by.
Earth Sciences
Aug 7, 2019
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Venus is almost the same size, mass and density as Earth. So it should be generating heat in its interior (by the decay of radioactive elements) at much the same rate as the Earth does. On Earth, one of the main ways in which ...
Planetary Sciences
Mar 19, 2023
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In a groundbreaking announcement at the 55th Lunar and Planetary Science Conference held in The Woodlands, Texas, scientists revealed the discovery of a giant volcano and possible sheet of buried glacier ice in the eastern ...
Planetary Sciences
Mar 13, 2024
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A combined team of geochemists from Woods Hole Oceanographic Institution and California Institute of Technology has found evidence of high levels of helium-3 in rocks on Baffin Island—possible evidence that the Earth's ...
Earth's magnetic fields typically switch every 200 to 300 millennia. Yet, the planet has remained steady for more than twice that now, with the last magnetic reversal occurring about 773,000 years ago. A team of researchers ...
Earth Sciences
Oct 21, 2020
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Lava tubes large enough to house cities could be structurally stable on the moon, according to a theoretical study presented at the Lunar and Planetary Science Conference on Tuesday (March 17).
Space Exploration
Mar 19, 2015
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A study published in Geophysical Research Letters confirms the existence of a large open lava tube in the Marius Hills region of the moon, which could be used to protect astronauts from hazardous conditions on the surface.
Space Exploration
Oct 18, 2017
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Hawaii's Mauna Loa, the largest active volcano in the world, has erupted for the first time in nearly 40 years, US authorities said, spewing lava and ash Monday as emergency crews went on alert.
Environment
Nov 28, 2022
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