Foto de stock - NASA and ESA are celebrating the Hubble Space Telescope's silver anniversary of 25 years in space by unveiling some of nature's own fireworks - a giant cluster of about 3,000 stars called Westerlund 2. The cluster resides inside a vibrant stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. The comparatively young, 2-million-year-old star cluster contains some of our galaxy's hottest, brightest, and most massive stars. The largest stars are unleashing a torrent of ultraviolet light and hurricane-force winds that etch away the enveloping hydrogen gas cloud. This creates a fantasy celestial landscape of pillars, ridges, and valleys. Launched in 1990, NASA's Hubble Space Telescope has made more than 1. 2 million observations of more than 38,000 celestial objects. In its 25-year lifetime the telescope has made nearly 137,000 trips around our planet. Hubble has racked up plenty of frequent-flier miles, 3. 4 billion. An average of 829 gigabytes of Hubble data are added to the archive every month -- Picture by Atlas Photo Archive/NASA.