136 gigapascals (1.36 million atmospheres) and> 4000 C. The velocity and sound density profiles of the interior depths of our planet are given by Seismological Observations. Credit: Assistant Professor Yoichi Nakajima “width =” 800 “height =” 480″/> Our planet has a layered structure of silicate mantle and metal core. The …
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A simulated phylogenetic tree. Time runs from top to bottom, and the nodes represent species, the lines represent DNA mutations associated with the gene being studied. Bifurcations signify speciation events. This tree has a complex structure but it is also fractal in a topological sense. Credit: Carl R. Woese Institute …
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A total lunar eclipse is sometimes known as the Blood Moon due to the reddish tint that the Moon takes on. Blood moons are a fairly rare event, appearing slightly more frequently than twice every three years. Between now and 2025, for example, astronomers expect only five blood moons to …
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The group’s academic firepower is impressive: it includes experts in fields from virology to behavioral science, from laboratories at Cambridge, Oxford, Imperial College and the London School of Hygiene and Tropical Medicine. But transparency brought its own set of challenges. The role that scientists played in Britain’s procrastinating response to …
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An astronaut walking through space joined the millions of pieces of garbage orbiting the Earth on Friday, losing a small mirror on his sleeve as soon as he left the International Space Station to work on batteries. Commander Chris Cassidy said the mirror floated away. The lost item poses no …
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