Determining something's radial velocity—how fast it is moving towards or away from you—is quite easy. By taking note of something called the Doppler effect and making close observations of the ...

as a fast-moving wildfire swept through mountains north of LA. Now, a new study has raised concerns about the long-term health effects of being exposed to wildfire smoke. Researchers looked into ...

There is no doubt that smoking can have serious consequences for a person's health, but just how much effect can it have ... of a parent or parents who smoke may be at risk from the genetic ...

Investigators believe the smoke was caused by a moving train striking an object on the tracks, officials said. By Ed Shanahan Sixteen people were hospitalized on Tuesday after a subway train hit ...

Satellite images show plumes of smoke from Canadian wildfires moving across the U.S. Midwest towards the East Coast on Wednesday. Tens of millions of people remain under air-quality alerts.

:Our crew is on South Mission Ridge Road, where a few vacant homes have caught fire, according to firefighters on scene.So far, no evacuations have been m ...