Getting in Sync with the SKA

With thousands of radio dishes spread over thousands of kilometres, the Square Kilometre Array will be the largest and most powerful radio telescope in the world and able to explore the deepest regions of the cosmos. But only if these thousands of radio dishes, some hundreds of kilometres apart, can be synchronized to within a … Continue reading Getting in Sync with the SKA

Spooky Action at a Distance

Quantum mechanics is weird. To be a physicist you have to accept that the microscopic, underlying reality of nature looks and behaves very differently to the laws of physics we are used to in our every day lives. Many physicists struggle to accept this, including Einstein. Einstein disliked the fact that quantum mechanics, a theory … Continue reading Spooky Action at a Distance

Between a clock and outer space

We used a telescope and a high-precision laser system to beam an atomic clock signal through thin air. While we only sent the signal between buildings, this is the first step in developing a system able to beam these signals to satellites in orbit, with the ultimate aim of pushing our theories of the universe … Continue reading Between a clock and outer space