The world’s largest beaver dam is so big that you can see it from space | World News

Wood Buffalo National Park, in Canada, which spans northern Alberta and parts of the Northwest Territories, contains the largest beaver dam ever recorded. The structure lies deep within the park, far from roads, towns, or marked trails, making it largely inaccessible by foot. Its size is so vast that it is visible in satellite images […]

How was the first full-colour photograph of Earth captured by NASA |

The first full-colour photograph of Earth marked a turning point in how humanity understood its planet, shifting the view from fragmented satellite snapshots to a vivid global portrait. During the late 1960s, NASA was expanding its experimental satellite programme, exploring how colour imaging could enhance weather forecasting and planetary observation. This period saw rapid innovation […]