When financial distress spreads like a virus

Financial distress can spread through the business network that links different firms at a speed that is dependent on the intensity of interfirm interactions. Empirical results show that, starting from the '80s, the economy ...

The roar and crackle of Artemis 1

When the Artemis 1 mission was launched by NASA's Space Launch System, SLS, in November, it became the world's most powerful rocket, exceeding the thrust of the previous record holder, Saturn, by 13%. With liftoff came a ...

Untangling a knot of galaxy clusters

Astronomers have captured a spectacular, ongoing collision between at least three galaxy clusters. Data from NASA's Chandra X-ray Observatory, ESA's (European Space Agency's) XMM-Newton, and a trio of radio telescopes is ...

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