Rafael Nadal pulls out of US Open as retirement questions linger

Rafael Nadal pulled out of the U.S. Open on Wednesday, making it…

Wind and rain set to linger for days across Australia

In many cities around the country, the next several days will be…

The vital question may linger forever: Did Oscar Pistorius know he was shooting at his girlfriend?

Pistorius has always claimed that he didn’t, that he mistook her for…

NYC’s air pollution among world’s worst as smoke from Canadian wildfires set to linger

New York City’s air was more polluted than all but one of…