The Atomic Clock Ensemble in Space (ACES) is a European Space Agency (ESA) mission that will generate a time signal with unprecedented accuracy and then transmit it via laser to nine ground ...

Spiral galaxy IC 1954 is located approximately 45 million light-years from Earth in the constellation Horologium, The Clock.© ESA/Hubble & NASA, D. Thilker, J. Lee and the PHANGS-HST Team ...

Two Colorado-based researchers proposed a solution in a recently published scientific paper involving clocks floating in space to calculate the time difference between the Earth and the Moon.