In various contexts, for practical, philosophical, and logical reasons, there is a default assumption. In the criminal justice system, for example, someone is presumed innocent until proven guilty. T ...

"We think we can make something better or find out what is going on in this interesting area if we try a bunch of things and apply several sophisticated techniques to study this." These proposals are ...

What causes the memory loss and cognitive decline associated with Alzheimer’s disease? For decades researchers have known that the peptide beta amyloid starts to build up in the brains of Alzheimer’s ...

Where and when the Covid-19 pandemic began — in Wuhan, China in late 2019 — is well known. How it began is a matter of heated controversy. There are two competing hypotheses, one of which is hindering ...

The hypothesis that COVID-19 originated from a Chinese laboratory, rather than a naturally occurring jump from animals to human beings, received a major boost over the weekend. The Wall Street Journal ...

Gillings first began to think about PMS when he found out that premenstrual dysphoric disorder was being added to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders. “I ...

Ask your friends why scientists have failed to find extraterrestrials, and you can be sure at least one of them will offer the following answer: Humans are not worthy. We’re flawed beings. We ...