National Geographic's Weekly Space Photos
National Geographic publish newly released photos of our universe each week on their brilliant website. This week's publication includes photos of the Crab Nebula (shown above), a solar sunami, the Earth from the ISS, dust from Centaurus and an artist's depiction of the birth of a star. The Crab Nebula is described as "the remnant of a stellar explosion 6,000 light-years from Earth that was so powerful people saw the burst in A.D. 1054, according to NASA". Click here to see more.