Since the early 20th century, scientists have gathered compelling evidence that the universe is expanding at an accelerating rate. This acceleration is attributed to what is known as dark energy—a ...

Cells age for many reasons, but one idea keeps resurfacing. As the years pass, small DNA changes stack up inside tissues and slowly tilt biology off balance. A new set of analyses points the finger at ...

A small yet innovative experiment is taking place at CERN. Its goal is to test how the CERN-born optical timing signal—normally used in the Laboratory's accelerators to synchronize devices with ...

At the heart of all lithium-ion batteries is a simple reaction: Lithium ions dissolved in an electrolyte solution "intercalate" or insert themselves into a solid electrode during battery discharge.