Watch a science experiment showing how balloons can float using methane and hydrogen instead of helium. See how hydrogen is ...

Our next story takes us to the ice of Antarctica, where NASA scientists are launching gigantic balloons that will rise up way into the stratosphere, to near space. Some of these balloons are so big ...

Explore 25 science experiments that defied the laws of physics, revealing mind-bending phenomena that challenge intuition.

Scientists with NASA are launching enormous balloons, the size of a football stadium, from the Antarctic ice. They're carrying experiments on dark matter and other mysteries. Our next story takes us ...