The Crab Nebula (M1) ~ The first object on Charles Messier's famous 18th century list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, debris from the death explosion of a massive star, witnessed and recorded by astronomers in the year 1054. This sharp, ground-based telescopic view uses narrowband data to track emission from ionized oxygen and hydrogen atoms (in blue and red) and explore the tangled filaments within the still expanding cloud.
Diamond core - An exoplanet made entirely of diamonds was discovered this year by an international research team. Approximately five times the size of Earth, the small planet had mass similar to that of Jupiter. Scientists believe the short distance from its star coupled with the exoplanet’s mass means the planet, remnants of another star, is mostly crystalline carbon. http://myscienceacademy.org/2013/01/03/27-science-fictions-that-became-science-facts-in-2012/
Hubble Captures Breathtaking Portrait Of Blue Bubble In Space
NASA | Cartwheel Galaxy from Hubble | The Cartwheel is part of a group of galaxies about 400 million light years away in the constellation Sculptor. The large galaxy’s rim spans over 100,000 light years & is composed of star forming regions filled with extremely bright & massive stars. The Cartwheel’s ring-like shape is the result of gravitational disruption caused by a smaller galaxy passing through a large one...