Aurora borealis or northern lights. 3D Northern Lights. Northern Lights is available in 360x260, 630x315 pixels resolutions. Choose 3D-Northern-Lights.jpg's appropriate size/resolution from following which best fit on your device.
To download above image, click on the download button, the wallpaper will open in browser's new window, then right click on the Northern Lights image and select 'save as' to save on your computer/laptop.