NASA issues safety guidelines ahead of rare ‘coast-to-coast’ total solar eclipse

Published time: 25 Jul, 2017 23:29 With the US set to experience its first “coast-to-coast” total eclipse in 99 years, NASA has issued guidelines on how to safely watch the rare phenomenon. Total solar eclipses occur when the moon passes between the sun and the Earth, blocking the sun’s light from reaching our planet. An […]