As global oil consumption drops, oil companies are pivoting to petrochemicals, and could crowd out bio-based alternatives.

Alfvén waves, first proposed 80 years ago, could explain why the sun's atmosphere is so much hotter than its surface.

Scientists are working on ways to make lots of energy by converting matter into energy. The trick is keeping the process under control. One possibility is nuclear fusion – the Sun's power source.

A "molecular glue" strengthens a key weak point in perovskite solar cells. The advance makes them tougher, more efficient, and more reliable.

Astronomers just measured the largest flare ever from Proxima Centauri, humanity's closest neighboring star. These flares could be bad news for life trying to develop on a planet orbiting the star.

Installing solar panels over California's 4,000 miles of canals could generate less expensive, renewable energy, save water, fight climate change – and offer a solution for the thirsty American West.

Earth's floating solar power capacity has grown one-hundredfold in the last five years.

Technology innovation is one of the Biden administration’s most powerful tools for accelerating progress on climate change. Recent successes in renewable energy and batteries show how this can work.

Right now, the nation is almost entirely dependent on other countries for minerals that are used in everything from wind turbines to strike fighters and satellites.

The US electricity grid is actually five regional grids, and it's hard to share power between them. A macrogrid could bridge the gaps, making electricity cheaper and more reliable.