NASA's OSIRIS-REx spacecraft flew by Earth on Sept. 24, 2023, dropping off its sample of dust and pebbles gathered from the surface of near-Earth asteroid Bennu.
Astronomy
Oct 12, 2023
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Within a given tissue or organ, cells may appear very similar or even identical. But at the molecular level, these cells can have small differences that lead to wide variations in their functions.
Biochemistry
Jul 21, 2022
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Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
Biotechnology
May 23, 2012
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Researchers at Tokyo Institute of Technology have found a simple, yet highly versatile way to generate "chaotic signals" with various features. The technique consists of interconnecting three ring oscillators, effectively ...
General Physics
May 22, 2019
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Researchers at Harvard Medical School have discovered that structural elements in the cell play a crucial role in organizing the motion of cell-surface receptors, proteins that enable cells to receive signals from other parts ...
Cell & Microbiology
Aug 18, 2011
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A small team of biologists from Freie Universität Berlin and the Max Planck Institute for Chemical Ecology, both in Germany, has calculated the degree of risk faced by wild fruit flies by capturing more than 10,000 of them ...
Molecular motors are complex devices composed of many different parts that consume energy to perform various cellular activities. In short, molecular machines transform energy into useful work. Understanding the mechanistical ...
Biochemistry
Aug 26, 2022
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43
Less than halfway through the 2020 wildfire season, fires are burning large swaths of the western U.S. As in previous years, these disasters have entered populated areas, damaging drinking water networks. Water systems have ...
Environment
Sep 17, 2020
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When wildfires swept through the hills near Santa Cruz, California, in 2020, they released toxic chemicals into the water supplies of at least two communities. One sample found benzene, a carcinogen, at 40 times the state's ...
Environment
Dec 15, 2020
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Oscillating chemical systems are present at nearly every popular chemistry exhibition—especially the ones that display striking color changes. But so far there are very few practical uses for these types of reactions beyond ...
Analytical Chemistry
Sep 6, 2023
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