Welcome to a “Breaking Science News” update from Hawaii Science Digest.
Views expressed in this science and technology news summary are those of the reporters and correspondents.
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Accessed on 20 March 2019, 0155 UTC.
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12:23 PM (3 hours ago)
Breaking Science News
- Blackpoll Warblers Migrate Up To 12,400 Miles Roundtrip Every Year
- World’s Oldest Mariner’s Astrolabe Found
- Dormant Herpes Viruses Reactivate in Astronauts During Spaceflight, New Study Shows
- First Neuroscientific Evidence that Humans Have Geomagnetic Sense
- Green Tea Consumption Improves Metabolism, Overall Health in Obese Mice: Study
|Blackpoll Warblers Migrate Up To 12,400 Miles Roundtrip Every Year
Posted: 19 Mar 2019 12:14 PM PDT
Blackpoll warblers (Setophaga striata) that breed in western North America migrate up to 12,400 miles (20,000 km) roundtrip each year, some crossing the entire North American continent before making a nonstop trans-ocean flight of up to four days to South America. A new study, published in the journal Ecology, confirms the epic migration journey that […]
|World’s Oldest Mariner’s Astrolabe Found
Posted: 19 Mar 2019 11:05 AM PDT
A unique leaded-gunmetal disk with iconic Portuguese markings recovered from the Sodré shipwreck site in Al Hallaniyah, Oman, has been identified as an early mariner’s astrolabe, according to a paper published in the International Journal of Nautical Archaeology. Accurate digital measurements of regular scale marks on the limb of the artifact’s upper right quadrant show […]
|Dormant Herpes Viruses Reactivate in Astronauts During Spaceflight, New Study Shows
Posted: 19 Mar 2019 07:00 AM PDT
Latent herpes viruses such as herpes-simplex-1 (HSV-1), Epstein-Barr virus (EBV), varicella-zoster virus (VZV), and cytomegalovirus (CMV) reactivate in more than half of crew aboard Space Shuttle (10-16 days) and International Space Station (over 180 days) missions, according to a study published in the journal Frontiers in Microbiology. “NASA astronauts endure weeks or even months exposed […]
|First Neuroscientific Evidence that Humans Have Geomagnetic Sense
Posted: 19 Mar 2019 05:58 AM PDT
An international team of neuroscientists and geoscientists from Caltech, the University of Tokyo, Princeton University and Tokyo Institute of Technology has discovered that the human brain can detect Earth-strength magnetic fields. The Earth is surrounded by a magnetic field, generated by the movement of the planet’s liquid core. At the planetary surface, this magnetic field […]
|Green Tea Consumption Improves Metabolism, Overall Health in Obese Mice: Study
Posted: 19 Mar 2019 04:35 AM PDT
In a study published in the Journal of Nutritional Biochemistry, mice fed a diet of 2% green tea extract fared far better than those that ate a diet without it; the benefits stemmed from improved gut health, including more beneficial bacteria in the animals’ intestines and the reduced permeability of their intestinal wall. Green tea […]
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