New technology could boost the efficiency of solar power systems by converting waste heat into light.

A warmer tundra means more greenhouse gases from microbes, new research shows. That's bad news for fighting climate change.

After cold weather, deadly opioid overdoses go up, researchers report. There may be both biological and psychological reasons why.

Rising temperatures in major US cities will lead to more heat-related deaths, experts warn. See the map.

The Parker Solar Probe stands to solve a solar mystery. The work could help scientists better predict solar weather, which can threaten Earth's power grid.

...the increases in summer air temperatures that we have seen in recent years are initiating widespread changes in the landscape."

A new nanocomposite material could help future electronics and energy storage devices handle seriously high temperatures.

In the Leidenfrost effect, water droplets don't evaporate on a hot surface, but instead dance and skitter or explode. Now we know why.

A new device for controlling and measuring qubits inside a cooler environment could let quantum computers tackle more complex problems.

Scientists can predict heatwaves in California by looking for rain half a world away.