Global timekeepers vote to scrap leap second by 2035

Scientists and government representatives meeting at a conference in France voted on Friday to scrap leap seconds by 2035, the organization responsible for global timekeeping said.

Quantum sensors for GPS-free orientation

How can we navigate airliners or allow military vehicles to stay on course without GPS or satellite signals? This is a problem for which quantum inertial sensors offer a solution. Harnessing quantum technology, they can take ...

ESA plans for low-orbiting navigation satellites

Satellite navigation is headed closer to users. ESA's Navigation Directorate is planning an in-orbit demonstration with new navigation satellites that will orbit just a few hundred kilometers up in space, supplementing Europe's ...

Balancing risk and reward in planetary exploration

NASA's Mars rovers strive for groundbreaking scientific discoveries as they traverse the Martian landscape. At the same time, the crews operating the rovers do all they can to protect them and the billions of dollars behind ...

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