Handelsblatt

EDF: Frankreichs neue Atomreaktoren werden 40 Prozent teurer als geplant

Die sechs geplanten neuen Atomreaktoren in Frankreich werden voraussichtlich 40 Prozent teurer als ursprünglich vorgesehen. Die Kosten für die sechs Reakt...

An Orbital House of Cards: Frequent Megaconstellation Close Conjunctions

The number of objects in orbit is rapidly increasing, primarily driven by the launch of megaconstellations, an approach to satellite constellation design that involves large numbers of satellites paired with their rapid launch and disposal. While satellites provide many benefits to society, their use comes with challenges, including the growth of space debris, collisions, ground casualty risks, optical and radio-spectrum pollution, and the alteration of Earth's upper atmosphere through rocket emissions and reentry ablation. There is substantial potential for current or planned actions in orbit to cause serious degradation of the orbital environment or lead to catastrophic outcomes, highlighting the urgent need to find better ways to quantify stress on the orbital environment. Here we propose a new metric, the CRASH Clock, that measures such stress in terms of the time it takes for a catastrophic collision to occur if there are no collision avoidance manoeuvres or there is a severe loss in situational awareness. Our calculations show the CRASH Clock is currently 2.8 days, which suggests there is now little time to recover from a wide-spread disruptive event, such as a solar storm. This is in stark contrast to the pre-megaconstellation era: in 2018, the CRASH Clock was 121 days.

Unsanctioned roadway barriers installed in the dark of night on Gabriola Island | CBC News

Just a few weeks after residents pleaded with local government to take action on "traffic chaos" at Descanso Bay Ferry Terminal on Gabriola Island, someone has gone rogue and installed delineators along the road in an attempt to help make pedestrians feel safer.