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The media is full of news of war, terrorism and armed conflict, and this shapes our perceptions of violence. However, if we look at the costs resulting from these forms of violence, the numbers are surprising: About 12% of the global cost comes from war and terrorism. A much larg

A star called TOI-2155 lies around 1,350 light-years (839 trillion miles) from Earth. It is a little bigger, heavier and hotter than the sun, and it is not particularly interesting or unusual in itself.

Light can carry enormous amounts of information at extreme speeds, making photonic technologies promising for the development of faster communications, more powerful computing systems and more sensitive sensors. But for light to be useful for these purposes, engineers need to be

Gold may have a secret self-defense system that helps it resist tarnishing. Researchers discovered that atoms on gold surfaces reorganize themselves into patterns that block oxygen from reacting with the metal, suppressing oxidation by up to a trillion-fold. Beyond explaining why

Researchers have captured how a molecule redistributes energy after absorbing light, differentiating the roles of individual atoms in the process. They used X-ray flashes from the European XFEL to show that different atoms in the same molecule can reveal different aspects of the

Guardian analysis found the removals coincided with the Trump administration’s push to weaken efficiency rulesAs millions of Americans prepare for another brutal heatwave, it’s now harder to find information about ways to stay cool while saving energy and keeping utility costs down.At least 1,662 department of energy webpages offering guidance on protecting the electrical grid during heatwaves have gone dark as of 3 July, according to a Guardian analysis of a list of deleted URLs provi

Country risks new tariffs from US and EU as it looks likely to match or beat last year’s record surplus of $1tnBusiness live – latest updatesChina’s monthly car ‌exports topped 1m for the first time in June as overall overseas shipments from the world’s second biggest economy rose 27%.Official Chinese customs data showed that a stronger-than-expected trade performance kept China on track to match or beat last year’s record trade surplus of $1tn (£748bn), achieved despite Donald Trump’s