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

Our home galaxy, the Milky Way, is just one of billions in our universe. So, in the grand scheme of things, we're not so ...

A void secreted away in the largest pyramid in Giza has been revealed ... The behavior of those particles -- which are created by cosmic rays zipping around Earth's atmosphere -- revealed the ...

Why matter dominates over antimatter in our universe has long been a major cosmic mystery to physicists. A new finding by the ...

Nicknamed the “Big Wheel,” a giant, spiral-shaped disk galaxy was spotted in an unusually crowded part of the early universe just two billion years after the big bang ...

also called the Great Pyramid - the largest of three main structures in Giza. What's more, the team used cosmic rays to locate the void and estimate its size through millions of tons of rock.

That makes it the largest void ever observed ... the matter density could be as much as 50% below the cosmic average. If our galaxy lies inside such a void, that could explain why local ...