The mysterious impact of a United Airlines aircraft in flight last week has sparked plenty of theories as to its cause, from space debris to high-flying birds. However the question of what happened to ...

A weather balloon may have cracked the windshield of a United Airlines flight last week, forcing it to divert to Salt Lake City, a weather balloon company said. Transportation officials said they were ...

A mysterious object that cracked a windshield on a United Airlines flight, injuring a pilot and forcing an emergency landing, may have been a weather balloon. WindBorne, a California start-up focused ...

A United Airlines plane appears to have collided with a weather balloon while cruising over Utah at 36,000 feet last week, fracturing layers of its windshield and forcing an emergency landing. A ...

A United Airlines plane appears to have collided with a weather balloon while cruising over Utah at 36,000 feet last week, fracturing layers of its windshield and forcing an emergency landing. Disney ...