An icon in the shape of a lightning bolt. Impact Link Flights to and from Haiti have been suspended after bullets hit planes operated by three US airlines: Spirit, JetBlue, and American.

The chances of intelligent life emerging in our universe—and in any hypothetical ones beyond it—can be estimated by a new ...

Why is the expansion of our universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...

read and understand the notation and analyses of a wide class of models in the scientific literature, including foundational topics in microeconomics formulate and formalize a wider range of models ...

Research questions/Hypothesis: pVO2 predictive equations are derived from predominantly male historical cohorts, thus they may be unreliable for women. Goals/Aims: To determine the sex-based ...