The second law of thermodynamics demands that if we want to make a clock more precise – thereby reducing the disorder, or entropy, in the system – we must add energy to it. Any increase in energy, ...

In the strange, often unintuitive world of quantum physics, one mystery has stood out for decades: Can quantum entanglement be manipulated in a reversible way, like energy in a perfect heat engine?

The second law of thermodynamics has played an important role in ecological economics as providing a justification for the view that economies have limits to growth. Yet beyond basic textbooks ...

China's Tianwen 2 probe has captured striking pictures of home as it heads out to a near-Earth asteroid to collect samples.

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