If they're out there, other advanced civilisations should be emitting waste energy like hot exhaust. And that provides a good way to spot them, argue SETI experts.
After aircraft were targeted with high-power laser pointers in 2008, Australia banned them. But the prohibition seems to have had an entirely different effect.
LEDs outperform incandescent lights, hands down. But they should also give farmers unprecedented control over plant growth, development and nutritional content in future, say researchers.
Elon Musk says he's increasingly confident that a massive factory will lower battery costs enough for a mass-market electric vehicle.
Subtracting nuclear reactors in the U.S. could make it tougher to meet climate goals.
We should think sensibly about nuclear energy’s risks.
The energy-efficient power networks of the future will require entirely new ways of forecasting demand on the scale of individual households. That won't be easy.
The difficulty of predicting local effects of climate change makes a compelling case for preventing it.
Titanium sheets and additional aluminum deflect or block road debris, better protecting the lithium ion battery in the Model S.
When it comes to cities, being big and rich is better for the planet than being big and poor, according to a new study of carbon dioxide emissions from cities around the world. But is this correct?