How big is the universe? This infographic, designed by Number Sleuth, visualizes the size of the universe and its contents by allowing you to scroll down from the very largest known objects to the smallest and compare their relative sizes. Each row in t
NASA has proclaimed this image the MOST amazing high definition image of Earth ever. This ‘Blue Marble’ image of the Earth was taken from the VIIRS instrument aboard NASA’s most recently launched Earth-observing satellite – Suomi NPP.