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High oxidative stress hampers males' production of powerful blood vessel dilator
(Medical College of Georgia at Augusta University) Higher levels of oxidative stress in males results in lower levels of a cofactor needed to make the powerful blood vessel dilator nitric oxide, researchers report.
Easter Island's society might not have collapsed
(Field Museum) A new study of the tools used to create Easter Island's giant statues hints at a society in which people collaborated and shared information.
Paul Allen’s Stratolaunch venture rolls out world’s biggest airplane for weekend tests
Stratolaunch’s giant airplane sits on the tarmac at California’s Mojave Air and Space Port. (Stratolaunch Photo)
, the launch venture created by Microsoft co-founder Paul Allen, took the world’s biggest airplane out of its hangar this weekend at Cali...
Fastest, closest, hottest: NASA’s Parker Solar Probe blasts off to ‘touch the sun’
A United Launch Alliance Delta 4 Heavy rocket sends NASA’s Parker Solar Probe spaceward from Cape Canaveral Air Force Station in Florida. (NASA via YouTube)
NASA today sent a super-shielded spacecraft known as the Parker Solar Probe on a mission that...
Computer Programmers Get New Tech Ethics Code
The guidelines come from the Association for Computing Machinery-- Read more on ScientificAmerican.com
Rotavirus vaccine cuts infant diarrhoea deaths by a third in Malawi
(University of Liverpool) A major new study has shown that rotavirus vaccination reduced infant diarrhoea deaths by 34 percent in rural Malawi, a region with high levels of child deaths. The study led by scientists at the University of Liverpool, UCL...
Computerized Chemical Toxicity Prediction Beats Animal Testing
Researchers programmed a computer to compare structures and toxic effects of different chemicals, making it possible to then predict the toxicity of new chemicals based on their structural similarity...-- Read more on ScientificAmerican.com
Blue Origin shows off BE-3U upper-stage rocket engine as its many efforts ramp up
Blue Origin’s BE-3U upper-stage rocket engine undergoes testing. (Blue Origin via Twitter)
, the space venture founded by Amazon CEO Jeff Bezos, is sharing a short video clip featuring the lesser-known rocket engine for its orbital-class.
The spotlig...
Breaking down the Wiedemann-Franz law
(ETH Zurich Department of Physics) A study exploring the coupling between heat and particle currents in a gas of strongly interacting atoms highlights the fundamental role of quantum correlations in transport phenomena, breaks the revered Wiedemann-F...
Doctors Prescribe Fewer Opioids after Learning of Patient Deaths
Clinicians were contacted about fatal overdoses-- Read more on ScientificAmerican.com