“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time. We don’t know exactly what dark energy is—no one has ever directly seen or measured ...

Ankur Gupta receives funding from NSF. Modern life relies on electricity and electrical devices, from cars and buses to phones and laptops, to the electrical systems in homes. Behind many of these ...

SAPPORO, Japan — Ocean winds whip across the beaches, hillsides and sprawling plains of Hokkaido. There’s enough wind energy here for Japan’s northernmost island to power itself and export clean ...

Here’s what you’ll learn in this story: Current solar power technology works great—but falters during heat waves, losing a significant percentage of potential electricity. Scientists in the UK found a ...