Physicists, mathematicians and philosophers have been exploring the possibility of going forward to the future or back to the ...

We found that repeated mental exertion can significantly decrease people’s motivation to engage in challenging tasks, and we ...

A magnitude 6.8 earthquake struck just south of the city of Kumamoto on the southern Japanese island of Kyushu on Tuesday ...

After decades of hints and speculation, scientists have at last unveiled the hidden companion to the iconic star Betelgeuse ...

Vikram Chib is an associate professor of biomedical engineering at Johns Hopkins University and the Kennedy Krieger Institute. He studies the neuroscience of motivated performance and decision-making.