Hubble Celebrates 25 Years in Space

Revel in this spectacular commemorative image from the NASA/ESA Hubble Space Telescope, courtesy of HubbleCast. Hubble was launched in orbit on 24 April 1990 as the first space telescope of its kind. For two and a half decades, it has beamed back data and images that have changed our understanding of the Universe and how it came to be. This amazing image of the star cluster Westerlund 2 is a giant cluster of about 3000 stars. The cluster resides in a raucous stellar breeding ground known as Gum 29, loca