In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Get the Celestron NexStar 130SLT computerized telescope for under $500 at Amazon — that's the cheapest we've seen it since ...
This planetary parade is a fleeting event, and tonight marks the best opportunity to witness its full beauty. In just a few ...
The face of this cosmic owl is created by a bubble of gas flowing out from an ageing star in UrsaMajor. Due to their round shape, such nebulae are know as planetary nebula - though in reality they ...