Detecting signs of life on planets beyond the solar system turns out to be more complicated than previously thought.
Our first impulse is to reject immoral actions as impossible.
Scientists find that soybeans attract fewer flocking birds than wheat or corn.
Interior designers are turning to experiments, using psychology and physics to come up with the best spaces for health -- and productivity.
NASA prepares to replace the twin satellites, named GRACE, that have monitored Earth's droughts, glacial retreats and sea level rise for the last 15 years.
Physicists show how switching positive and negative charges in graphene could make the first quantum time mirror.