ESA sets clock by distant spinning stars

ESA's technical centre in the Netherlands has begun running a pulsar-based clock. The "PulChron' system measures the passing of time using millisecond-frequency radio pulses from multiple fast-spinning neutron stars.

New orbiters for Europe's Galileo satnav system

The European Space Agency signed a contract with a German-British consortium Thursday to build eight more satellites for its Galileo satnav system, an alternative to America's GPS, the agency said Thursday.

The moons of Jupiter

Jupiter was appropriately named by the Romans, who chose to name it after the king of the gods. In addition to being the largest planet in our Solar System – with two and a half times the mass of all the other planets combined ...

Sixth Galileo satellite reaches corrected orbit

The sixth Galileo satellite of Europe's navigation system has now entered its corrected target orbit, which will allow detailed testing to assess the performance of its navigation payload.

Europe to resume satnav launches in March: Arianespace

Europe in March will resume satellite launches for its troubled Galileo navigation system, hoping to boost by at least six the number of orbiters this year, Arianespace and the European Commission said Wednesday.

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