An atomic nucleus assumes discrete energy levels when added energy excites that nucleus. These energy levels are the nucleus' unique fingerprint; no two nuclei have identical energy patterns. For exotic nuclei, which have ...
General Physics
Apr 5, 2023
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49
The sabertooth cat is an Ice Age icon and emblem of strength, tenacity and intelligence. These animals shared the North American landscape with other large carnivores, including short-faced bears, dire wolves and the American ...
Paleontology & Fossils
Apr 5, 2023
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186
How did we get from stardust to where we are today? That's the question NASA scientist Andrew Needham has pondered his entire career.
Space Exploration
Apr 4, 2023
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49
The recent discovery of a sabretooth cat skull in southwest Iowa is the first evidence the prehistoric predator once inhabited the state.
Paleontology & Fossils
Mar 30, 2023
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74
You may probably wonder how archaeologists determine the age of ancient artifacts or how long a piece of rock exists above the surface. Isotopic dating can tell the age covering hundreds of thousands of years. For instance, ...
Optics & Photonics
Mar 23, 2023
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15
Chemical and isotopic analysis of copper artifacts from southern Africa reveals new cultural connections among people living in the region between the 5th and 20th centuries according to a University of Missouri researcher ...
Archaeology
Mar 22, 2023
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149
Scientists researching the origin of elements in our galaxy have new insights into how they are transported to Earth, thanks to a new study led by authors at the University of Hertfordshire in the U.K. and the Konkoly Observatory, ...
Planetary Sciences
Feb 20, 2023
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104
The 2015–2018 summer droughts have been exceptional in large parts of Western and Central Europe over the last 400 years, in terms of the magnitude of drought conditions. This indicates an influence of man-made global warming. ...
Earth Sciences
Feb 16, 2023
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48
A team of theorists has extended their previous critical analysis of the Lead Radius Experiment (PREX). The experiment involved deducing the neutron size of a lead atom's nucleus by measuring a tiny left-right asymmetry in ...
General Physics
Feb 7, 2023
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15
A new study led by Northern Arizona University offers new evidence that a common framework to sort bacteria into two lifestyles doesn't easily apply to bacteria living in wild soil. The findings, published in The ISME Journal, ...
Ecology
Feb 6, 2023
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