Metrological institutions around the world administer our time using atomic clocks based on the natural oscillations of atoms. These clocks, pivotal for applications like satellite navigation or data transfer, have recently ...
Quantum Physics
Aug 30, 2023
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405
One of the precision formation flying Proba-3 satellites as seen from the other during ground testing. The pair will fly in orbit relative to one another down to millimeter scale precision, but in order to do this must keep ...
Space Exploration
Aug 25, 2023
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12
Motion of the Earth's surface mass, including the atmosphere and oceans as well as hydrology and glacier melting, causes the redistribution of Earth's surface loads, deformation of the solid Earth, and variations in the gravity ...
Planetary Sciences
Jul 24, 2023
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1
The movement between continental and oceanic plates at the bottom of the sea, so-called megathrust earthquakes, generates the strongest tremors and the most dangerous tsunamis. How and when they occur, however, has been poorly ...
Earth Sciences
Jun 7, 2023
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54
Europe's Galileo is the world's most precise satellite navigation system, providing meter-level accuracy and very precise timing to its four billion users. An essential ingredient to ensure this stays the case are the atomic ...
Planetary Sciences
Mar 13, 2023
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5
A new era of lunar exploration is on the rise, with dozens of moon missions planned for the coming decade. Europe is in the forefront here, contributing to building the Gateway lunar station and the Orion spacecraft—set ...
Space Exploration
Feb 27, 2023
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25
Land subsidence is a phenomenon wherein the Earth's surface sinks downwards. It occurs mainly due to human activities, such as excessive groundwater extraction. It is a major global concern, affecting 19% of the world's population. ...
Earth Sciences
Feb 21, 2023
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18
New research from the University of Washington shows that signals from the upper atmosphere could improve tsunami forecasting, and someday, help track ash plumes and other impacts after a volcanic eruption.
Earth Sciences
Dec 12, 2022
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66
When it comes to "on the ground" exploration of Mars, rovers make pretty good advance scouts. From Pathfinder to Perseverance, we've watched as these semi-autonomous robots do what human explorers want to do in the future. ...
Space Exploration
Dec 1, 2022
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24
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.
General Physics
Nov 18, 2022
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