M51 in 255 Hours #space #nasa
Full Explanation: https://t.co/wydxUxeCDj
(Excerpt): An intriguing pair of interacting galaxies, M51 is the 51st entry in Charles Messier’s famous catalog. Perhaps the original spiral nebula, the large galaxy with whirlpool-like spiral structure s… https://t.co/GtHJvzNSGU
Full Explanation
