Stressed university students might want to add walnuts to their daily diet in the weeks leading up to their next exam. A new  clinical trial of undergraduate students during their university studies has shown positive effects of walnut consumption on self-reported measures of mental health and biomarkers of general health. The University of South Australia study, published in the journal Nutrients, also suggests that walnuts ...

Imagine you’re on your way to Mars, and you lose a crucial tool during a spacewalk. Not to worry, you’ll simply re-enter your spacecraft and use some microorganisms to convert your urine and exhaled carbon dioxide (CO2) into chemicals to make a new one. That’s one of the ultimate goals of scientists who are developing ways to make long space ...