On Tuesday, Scott J. Kelly is scheduled to return from the International Space Station, completing the longest stay in space for a NASA astronaut. (Photo: NASA)
In 1054 AD, Chinese astronomers were startled by the appearance of a new star, so bright it could be seen in broad daylight for several weeks. Today, the Crab Nebula is what's left of the supernova explosion they witnessed.
Portion of the M8 Lagoon Nebula
Possible section of the Rosette Nebula?... Nebula of Stars and Colorful Gas - Long, Tall, Vertical Pins
For more amazing images and posts about how Astronomy is Awesome, check us out! http://astronomyisawesome.com/ As always, please feel free to ask questions and we love it when you reblog! #astronomy...
Nebulosa del cangrejo. 6500 años luz en nuestra galaxia, aún cerca.