The spin of the supermassive black hole in the Milky Way

Once a black hole forms, its intense gravitational field produces a surface beyond which even light cannot escape, and it appears black to outsiders. All the details of the complex mix of matter and energy in its past are ...

From pandemic shock to recession as pandemic set in

Pandemic-related restrictions on economic activity resulted in a massive reduction in working hours in March and April 2020. Only the key professions and those jobs that could be done from home were largely spared. Once the ...

Purging water system of brain-eating microbe to take 60 days

A Houston-area official said Monday it will take 60 days to ensure a city drinking water system is purged of a deadly, microscopic parasite that doctors believed killed a boy and that led to warnings for others not to drink ...

Colloidal dispersions of nanosheets for catalysis

Researchers from the ICN2 Nanostructured Functional Materials Group, in collaboration with other institutions, have used a liquid phase exfoliation process to obtain nanosheets with enhanced electrocatalytical properties. ...

Four new open clusters detected in the Cygnus Cloud

By analyzing the data from ESA's Gaia satellite, Chinese astronomers have discovered four new open clusters in the Cygnus Nebula Cloud. The newfound clusters, designated QC1 to QC 4, are located between 4,100 and 7,600 light-years ...

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