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Yearly Archives: 2019
Time-reversal violation may explain abundance of matter over antimatter, physicist says
Why does the observable universe contain virtually no antimatter? Particles of antimatter have the same mass but opposite electrical charge of their matter counterparts....
Beer and fodder crop has been deteriorating for 6,000 years
The diversity of the crop Sorghum, a cereal used to make alcoholic drinks, has been decreasing over time due to agricultural practice. To maintain...
Evolution imposes ‘speed limit’ on recovery after mass extinctions
It takes at least 10 million years for life to fully recover after a mass extinction, a speed limit for the recovery of species...
Is it genetic code or postal code that influence a child’s life chances?
Most children inherit both their postal code and their genetic code from their parents. But if genetic factors influence where families are able to...
Breaking down Beowulf: Statistical technique finds evidence that Old English poem had a single...
It's been a towering landmark in the world of English literature for more than two centuries, but Beowulf is still the subject of fierce...
Carbon lurking in deep ocean threw ancient climate switch, say researchers
A million years ago, a longtime pattern of alternating glaciations and warm periods dramatically changed, when ice ages suddenly became longer and more intense....
Researchers 3-D print metamaterials with novel optical properties
A team of engineers at Tufts University has developed a series of 3-D printed metamaterials with unique microwave or optical properties that go beyond...
Air temperatures in the Arctic are driving system change
A new paper shows that air temperature is the "smoking gun" behind climate change in the Arctic, according to John Walsh, chief scientist for...
Unexpected rain on sun links two solar mysteries
For five months in mid 2017, Emily Mason did the same thing every day. Arriving to her office at NASA's Goddard Space Flight Center...
Gravitational waves helping to expose black holes, dark matter and theoretical particles
Gravitational waves – the invisible ripples in the fabric of space predicted by Albert Einstein – are opening up a new era of astronomy...
Damaging Sichuan earthquakes linked to fracking operations
Two moderate-sized earthquakes that struck the southern Sichuan Province of China last December and January were probably caused by nearby fracking operations, according to...
