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Origin of fairy circles: Euphorbia hypothesis disproved Posted: 09 Jun 2021 09:34 AM PDT The fairy circles of the Namib are one of nature's greatest mysteries. Millions of these circular barren patches extend over vast areas along the margins of the desert in Namibia. An early hypothesis by G.K. Theron was that poisonous substances from Euphorbia damarana leaves induced fairy circles. Now new research found the original experiment and, 40 years later, the researchers are able to conclusively disprove this hypothesis. |
Astronomers discover a 'changing-look' blazar Posted: 09 Jun 2021 09:34 AM PDT Astronomers describe a 'changing-look' blazar -- a powerful active galactic nucleus powered by supermassive blackhole at the center of a galaxy. |
Brain connections mean some people lack visual imagery Posted: 09 Jun 2021 08:55 AM PDT New research has revealed that people with the ability to visualize vividly have a stronger connection between their visual network and the regions of the brain linked to decision-making. The study also sheds light on memory and personality differences between those with strong visual imagery and those who cannot hold a picture in their mind's eye. |
Key to carbon-free cars? Look to the stars Posted: 09 Jun 2021 08:55 AM PDT Scientists uncover new clues to the origins of the universe - and land new chemistry for cleaner combustion engines. |
The iron jaws of the bristle worm Posted: 09 Jun 2021 07:58 AM PDT Bristle worms have remarkably stable jaws. They are made of a very unusual material containing protein structures and metal atoms. Scientists have now been able to analyze and explain the properties of these structures, which could lead to novel industrially usable materials. |
Maori connections to Antarctica may go as far back as 7th century, new study shows Posted: 09 Jun 2021 07:58 AM PDT Indigenous Maori people may have set eyes on Antarctic waters and perhaps the continent as early as the 7th century, new research shows. |
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