Crucial test of Europe’s long-delayed Ariane 6 rocket delayed

Hotfire testing of the new Ariane 6 rocket has been delayed due to problems with ground equipment.  Test firing of the huge Ariane 6 rocket’s core stage did not take place as planned on Aug. 29 at Europe’s spaceport in Kourou, French Guiana, the European Space Agency announced via X (formerly known as Twitter) a day later.  The cause was a technical issue affecting the control system that governs the rocket’s critical fluid operations, used for filling the launcher and the automated countdown. “Specialists are working on a solution. The…

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Atomic clocks on Earth could reveal secrets about dark matter across the universe

Scientists are using atomic clocks to investigate some of the universe’s greatest mysteries, including the nature of dark matter, in a laboratory. In the process, they say they’re bringing cosmology and astrophysics “down to Earth.” The project, which is a collaboration between the University of Sussex and the National Physical Laboratory (NPL) in the U.K., uses the ticks of these incredibly precise clocks to hunt for hitherto unknown ultra-light particles.  These particles could be connected to dark matter, the mysterious substance that makes up an estimated 85% of all matter…

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