Residents of Earth’s northern hemisphere enjoyed the greatest number of daylight hours in a single day all year on 21 June 2017. This summer solstice occurs when the tilt of Earth’s axis is most inclined towards the Sun, which sits directly over the Tropic of Cancer. The ESA/NASA SOHO solar observatory provided an alternative view. This montage of images shows SOHO’s view of the Sun at different ultraviolet wavelengths in the early morning of 21 June, corresponding to solar material at a range of temperatures. See http://www.esa.int/spaceinimages/Images/2017/06/SOHO_s_summer_solstice_Sun
