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2021
493

How the brain navigates cities

An MIT study suggests our brains are not optimized to calculate the shortest possible route when navigating on foot. Instead, pedestrians use vector-based navigation, choosing “pointiest” paths that point most directly toward their destination, even if the routes are longer.

494

Three hours to save Integral spacecraft

On 22 September, around midday, ESA’s Integral spacecraft went into emergency Safe Mode. One of the spacecraft’s three active ‘reaction wheels’ had turned off without warning and stopped spinning, causing a ripple effect that meant the satellite itself began to rotate.