Background/aim Groin injuries are common in football and ice hockey, and previous groin injury is a strong risk factor for future groin injuries, which calls for primary prevention. The aim of this ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—poses a risk to humans when it falls to the ground. To locate possible crash sites, a Johns Hopkins University ...

New! Sign up for our free email newsletter.

The Arthur B. Robinson Center on Climate and Environmental Policy leads the fight against alarmist environmental, energy, and climate policies, while promoting sound solutions grounded in individual ...

For Subscribers The great race for the Arctic: Why Russia, China and the US all have it in their sights Trump is crossing red lines. Why doesn’t Europe push him back? Progress toward peace in Ukraine ...