In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

A void secreted away in the largest pyramid in Giza has been revealed thanks to some space-age technology ... those particles -- which are created by cosmic rays zipping around Earth's atmosphere ...

What's more, the team used cosmic rays to locate the void and estimate its size through millions of tons of rock. The cavernous space is roughly 100 feet long and sits almost directly above the ...

One approach looks far back in time, using the cosmic ... of space that could be skewing the measurements from our part of the universe. This idea revolves around something called the KBC void.