... Blue Sun Bursting . ... Our Sun is not a giant blueberry. ... What on Earth is that? ... Once the famous sunset comet, PanSTARRS (C/2011 L4) is now visible all night from much of the northern hemisphere, bound for the outer solar system as it climbs high above the ecliptic plane. ... Four X-class Flares . ... The largest and most notable was Earth's Moon, obscuring a big chunk of the Sun's lower limb as it moved across the solar disk, as viewed from Fremantle, Australia. ... First page ] Prev. ...