In their search for life in solar systems near and far, researchers have often accepted the presence of oxygen in a planet's atmosphere as the surest sign that life may be present there. A new Johns Hopkins study, however, ...
Astronomy
Dec 17, 2018
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All modern life shares a robust, hardy, efficient system of intertwined chemicals that propagate themselves. This system must have emerged from a simpler, less efficient, more delicate one. But what was that system, and why ...
Astrobiology
Jan 26, 2024
3
152
An international team of scientists working at the Plasma Technology research unit at Ghent University, Belgium, has determined for the first time the absolute density of active substances called radicals found in a state ...
Plasma Physics
Nov 12, 2012
0
0
In April 2009, the world took notice as reports surfaced of a virus in Mexico that had mutated from pigs and was being passed from human to human. The H1N1 "swine flu," as the virus was named, circulated worldwide, killing ...
Analytical Chemistry
Jun 11, 2012
0
0
Scientists in Poland have discovered that it is easy to clean and treat polluted water for extraction of valuable chemicals, such as those used in the production of drugs. The upshot of this is that the use of neither plants ...
Materials Science
Feb 24, 2012
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0
This is a veritable mechanics of aggression on the nanoscale. Certain bacteria, including Staphylococcus aureus, have the ability to deploy tiny darts. This biological weapon kills the host cell by piercing the membrane. ...
Biochemistry
Aug 4, 2013
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0
(Phys.org)—A team of researchers from Shanghai Jiao Tong University and Jinan University, both in China, has developed a new type of invisible ink. In their paper published in the journal Nature Communications, the group ...
In an important step during the early evolution of life on Earth, the formation of the amino acid cysteine delivered vital catalysts, which enabled the earliest protein molecules to form in water, according to a new study ...
Biochemistry
Nov 12, 2020
4
552
(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously ...
Space Exploration
May 24, 2012
2
4
In less time than it will take you to read this article, an artificial intelligence-driven system was able to autonomously learn about certain Nobel Prize-winning chemical reactions and design a successful laboratory procedure ...
Analytical Chemistry
Dec 20, 2023
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