T he United States, United Kingdom and Australia have all signed an agreement to develop a deep-space radar capable of keeping an eye on what’s happening in geosynchronous orbit. Found around 35,786 kilometres (22,236 miles) above Earth, this region is one of the most distant areas in which satellites operate. Interestingly, each spacecraft in geosynchronous orbit always hovers over the same area of Earth by matching the duration of its orbit to the rate at which our planet rotates once
