Nasa scientists find massive hole on Sun, 20 times larger than Earth

Nasa scientists have spotted a massive black region on the Sun, which is 20 times larger than Earth. The appearance of the “coronal hole” has prompted US federal agency National Oceanic and Atmospheric Administration (NOAA) to sound out an alert for geomagnetic storms as the gaping hole is unleashing 1.8 million mile-per-hour solar winds towards Earth, which will impact the planet on Friday.