A spacecraft traveling at 99 percent the speed of light toward Alpha Centauri would cross 4.3 light-years in what feels like months to its crew, while decades tick by on Earth. That asymmetry is not ...
ESA’s CryoSat-2 satellite, designed and operated to measure polar ice thickness, recorded significant disruptions during the extreme geomagnetic storm that struck Earth in May 2024. The event, ...