Nuclear physicists are notching scientific advances for fusion energy, fueling hopes - and billions in investment - to create an energy source that doesn't produce carbon or nuclear waste. Why it matters: For decades, scientists have chased the dream of using fusion for limitless clean energy.

A group of astronomers has discovered one of the biggest planets ever found orbiting a massive and extremely hot two-star system, despite previously believing that such an environment was too inhospitable for a planet to form in. The planet was discovered by Markus Janson, a professor of astronomy at Stockholm University, and colleagues, according to research published Wednesday in the science journal Nature.