Satellites show how a massive lake in Antarctica vanished in days

Repurposed communications satellites could help save humanity from an asteroid impact

NASA Mission Uncovers Hidden Meltwater Lakes Under Antarctica's Ice

On this day in 1962 the US set off Starfish Prime, the largest nuclear weapon ever exploded in space. It created an EMP that knocked out electronics across Hawaii & damaged or destroyed up to a third of the satellites in low-Earth orbit.