NASA’s Chandra X-ray telescope captures the nearest superstar cluster (image)
It’s a bird… it’s a plane… it’s a super star cluster! NASA’s Chandra X-ray telescope has imaged a star cluster that is “super” in every way. Westerlund 1 is super big, super massive, super young, super close – and it’s creating stars at a super fast pace. Westerlund 1 is about 13,000 light-years away from … Read more