Air pollution is no longer just a lung problem. Doctors warn it can trigger heart attacks even in healthy people by damaging ...

Solar physicists say they have found a key source of intense gamma rays unleashed when Earth's nearest star produces its most ...

How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie's ...

Oceans absorb about a quarter of the carbon dioxide released by human activity every year, slowing the pace of global warming ...