It makes sense that a balloon filled with a lightweight gas such as helium would float when surrounded by heavier air. But why does filling a huge balloon with hot air also make it float? This ...

Are you getting ready to throw a party? Well, I'm testing out some do-it-yourself hacks that are supposed to make the bash extra special! I'll let you know if they work! I saw a video from 5-Minute ...

FORT COLLINS, Colo. -- A 6-year-old Colorado boy feared to have floated off in a helium balloon was found safe at his home Thursday, hiding in a cardboard box in the garage attic. Sheriff Jim Alderman ...

While the balloon was airborne, Colorado Army National Guard sent a UH-58 Kiowa helicopter and was preparing to send a Black Hawk UH-60 to try to rescue the boy, possibly by lowering someone to the ...