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European Space Agency Puts Einstein’s Theory Of Relativity To The Test With Advanced Atom Clocks

by News Editor
April 22, 2025

In a groundbreaking mission, the European Space Agency has launched two state-of-the-art atomic clocks aboard a SpaceX rocket, bound for the International Space Station (ISS). These clocks are set to revolutionize the way we measure time, using lasers to synchronize global clocks via satellite networks for navigation and scientific research.

close up iss flying over earth globe atmosphere 2025 01 09 15 32 16 utc
Image: Envato

Key Missions of the Atomic Clock Ensemble in Space

  • The Atomic Clock Ensemble in Space (ACES) project promises unprecedented accuracy in time measurement, offering a chance to explore gravitational effects on Earth.
  • ACES will aid in fundamental physics experimentation, including extensive testing of Einstein’s theory of relativity, alongside the search for dark matter by refining the relationship between time and space.
  • The clocks, created by CNES and Safran Timing Technologies, are so precise they will lose only a second every 300 million years, though their stay in space won’t last forever.
  • ACES’ time transfer system, developed by Germany’s TimeTech, uses laser and microwave links for synchronization, enhancing GPS-based clock alignment.
  • Director of Human and Robotic Exploration at ESA, Daniel Neuenschwander, heralds this as a milestone for science and international collaboration.

Mission Highlights and Einstein’s Theory

The ACES clocks, launched aboard a SpaceX Falcon 9, are scheduled for installation on the ISS’s Columbus module. Their mission includes key observations related to Einstein’s relativity theory, such as gravitational redshift—a phenomenon affecting GPS accuracy.

Einstein’s theory, first verified during a 1919 solar eclipse, demonstrates mass-induced spacetime curvature, which influences how gravity operates.

Cypriot Government Employment Sees Modest Growth in April

by THEFUTURE.TEAM
May 12, 2025

Total government employment in Cyprus increased by 237 persons, a rise of 0.4 per cent, in April, compared to the same month in 2024, reaching a total of 55,490 employees, according to the state statistical service.

Employment in the civil service and the security forces decreased by 1.2 per cent and 1.1 per cent respectively, while the educational service saw an increase of 3.8 per cent.

Civil Service and Educational Service Breakdown

In April 2025, the civil service employed 11,960 permanent staff, 4,141 employees with contracts of indefinite duration, 1,458 with contracts of definite duration, and 5,798 hourly paid workers.

Permanent employees represented the highest proportion of the civil service workforce at 51.2 per cent, while employees with contracts of definite duration made up the lowest proportion at 6.2 per cent.

In the educational service, there were 12,461 permanent employees, 947 with contracts of indefinite duration, 4,824 with contracts of definite duration, and 141 hourly paid workers.

Permanent staff formed the majority of the educational workforce at 67.8 per cent, while hourly paid workers accounted for only 0.8 per cent.

Security Forces Breakdown

Within the security forces, 8,430 were permanent employees, 4,304 held contracts of indefinite duration, 267 were on definite-duration contracts, and 759 were hourly paid workers.

Permanent employees again made up the largest group in the security forces at 61.3 per cent, with definite-duration contracts representing just 1.9 per cent.

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