According to a recent study published in APL Photonics, a research team led by Prof. Liang Xu from the Hefei Institutes of ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

What did past civilizations leave behind? For archaeologists, that question can be difficult to answer. Remnants of buildings and other sites can be almost impossible to spot. Blame the ravages of ...