The Crab Nebula, the result of a supernova seen in 1054 AD.
This is a supporting image for the "Sailing With NASA" blog, which is documenting space shuttle external tank ET-134's sea voyage from Michoud Assembly Facility in New Orleans to the Kennedy Space Center in Florida.
Credit: NASA, ESA, J. Hester, A. Loll (ASU)
Read the original blog post, "Exploration May Be a Matter of
Follow the "Sailing With NASA" blog and the ET-134 journey: