The launch of a French rocket called Ariane 5 which would have placed two communications satellites for Brazil and South Korea into orbit was delayed on Monday by striking workers.
Einstein's theory of general relativity is to be put to the test by a newly launched satellite in an experiment that could upend our understanding of physics.
With less than a week to liftoff, the next Sentinel satellite for the Copernicus environmental monitoring programme is now in position high up in the launch tower at Europe's Spaceport in Kourou, French Guiana.
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.
Europe's first-ever "space plane" will be launched on February 11 next year, rocket firm Arianespace said Friday after a three-month delay to fine-tune the mission flight plan.
Space launch operator Arianespace said on Monday that Europe had decided against hoisting two more Galileo geolocation satellites in December following a launch mishap in August.
An Ariane 5 rocket took off from the European space centre at Kourou in French Guiana late Thursday, before placing two Asia-Pacific telecoms satellites into orbit, the launch firm Arianespace said.
Experts are racing to identify and fix a problem that saw two satellites from Europe's troubled Galileo satnav programme sent into the wrong orbit.
Two European Galileo satellites launched as part of a navigation system designed to rival GPS have failed to locate their intended orbit, launch firm Arianespace said Saturday.
Two satellites for Europe's rival to GPS, the Galileo navigation system, will be lifted into space from French Guiana on Friday a day after bad weather delayed their blast-off, launch firm Arianespace said.