NEW YORK — The sun’s erratic and sometimes volatile behavior has the potential to cause real problems here on Earth, and protecting our planet will require an international effort, according to ...

Since 1611, humans have recorded the comings and goings of black spots on the sun. The number of these sunspots waxes and wanes over approximately an 11-year cycle — more sunspots generally mean more ...

It's summertime for another few weeks, despite the common assumption that Labor Day brings summer's end. But this weekend still frequently brings the last chance to hit the beach or the pool, or to ...

Over the last two decades researchers have tried to untangle a tricky question: can modest sun exposure reduce the risk of certain internal cancers while also increasing the risk of skin cancers?

This year, that most wonderful season — summer — is shaping up to be a particularly hot one. It'll be the perfect time for days spent outdoors at the beach or pool, or for late afternoon grilling ...