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Dark matter's existence is all but certain—astronomers believe it makes up about a quarter of the universe's total energy content—yet its true identity has eluded us for decades. Two of the leading candidates for dark matter are the hypothetical particles ultralight axions and dark photons, whic...
Young children often overestimate what they can do. That overconfidence may help them approach challenges without fear, but it can also get them into trouble. Children who overestimate their physical abilities, for example, may take risks that make accidental injuries more likely.
With annual production of around 1 million metric tons (1. 1 million tons), formic acid is one of the most important basic chemicals and is used, among other things, as an additive in the animal feed industry. It is also increasingly attracting attention as an H2 carrier.
Black holes are fascinating regions in space where gravity is so strong that nothing, even light, can escape them. The largest known black holes, called supermassive black holes, contain millions to billions of times the mass of the sun and are typically located at the centers of galaxies.
A 19th-century real estate agent created the world's first version of Rightmove more than 160 years before the birth of online property previews.