We head up into the skies over Los Angeles in honor of the Goodyear Blimp's 100th. Come join us ... there's room for eight.

Pham is now warning others about the risks of using highly flammable hydrogen in balloons - which is often used instead of the safer helium alternative to make them fly higher. She said ...

There's a worldwide shortage of helium, which makes each trip very ... and German airships were filled with hydrogen, a highly flammable gas. No one knows exactly what happened, but as it ...

They also used a more readily available — and more flammable — gas ... There's a worldwide shortage of helium, which makes each trip very expensive. Yet there have been signs that airships ...