Using the Circumgalactic H-alpha Spectrograph (CHαS), astronomers have performed spectroscopic observations of a nearby active galaxy designated Messier 77. They detected a very extended structure of ionized gas around this ...
One of the most fascinating discoveries in biology is that cells have mechanisms for dynamically regulating genetic expression. This ability to promote or restrict the transcription of specific genes without altering the ...
Plants & Animals
Sep 10, 2024
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7
The world's most powerful supercomputer is helping resolve conflicting research results that have puzzled scientists for more than a decade, which could also shine new light inside collapsing stars.
General Physics
Sep 3, 2024
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89
Eukaryotic cells—that is, cells with a nucleus—possess an astounding ability to radically change their shape and their cytoskeleton, allowing them to migrate through tiny pores and constrictions even smaller than their ...
Cell & Microbiology
Sep 2, 2024
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14
The origin of eukaryotes is considered one of the greatest enigmas in biology: according to current doctrine, two prokaryotes, a so-called Asgard archaeon and a bacterium, are believed to have merged. The bacterium is said ...
Evolution
Aug 28, 2024
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53
The electron shell of atoms acts as an "electromagnetic shield," preventing direct access to the nucleus and its properties. A team in the group of Klaus Blaum, director at the Max Planck Institute for Nuclear Physics in ...
General Physics
Aug 19, 2024
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185
Researchers at Utrecht University in the Netherlands have identified a new way in which the toxic protein aggregates associated with Huntington's disease may damage nerve cells and cause them to die.
Cell & Microbiology
Aug 16, 2024
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82
Viruses of the family Flaviviridae, including Japanese encephalitis virus (JEV), dengue virus (DENV), Zika virus (ZIKV), West Nile virus (WNV), and tick-borne encephalitis virus, are significant arthropod-borne pathogens. ...
Cell & Microbiology
Aug 16, 2024
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23
Adding or removing neutrons from an atomic nucleus leads to changes in the size of the nucleus. This in turn causes tiny changes in the energy levels of the atom's electrons, known as isotope shifts. Scientists can use precision ...
General Physics
Aug 13, 2024
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169
Inside each cell, individual structures known as organelles perform key functions, but how these organelles contribute to the formation of tissues and organs is unknown. New research from the Campàs group at the Cluster ...
Cell & Microbiology
Aug 12, 2024
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54
