RocketSTEM Issue #11 - April 2015 | Page 41

9. New stars shed light on the past This Hubble image depicts bright blue newly formed stars that are blowing a cavity in the centre of a fascinating star-forming region known as N90. The high energy radiation blazing out from the hot young stars in N90 is eroding the outer portions of the nebula from the inside, as the diffuse outer reaches of the nebula prevent the energetic outflows from streaming away from the cluster directly. Because N90 is located far from the central body of the Small Magellanic Cloud, numerous background galaxies in this picture can be seen, delivering a grand backdrop for the stellar newcomers. The dust in the region gives these distant galaxies a reddish-brown tint. Credit: NASA, ESA and the Hubble Heritage Team STScI/AURA)-ESA/ Hubble Collaboration “I have fond memories of the Comet ShoemakerLevy 9 impacts with Jupiter in 1994 [#52]. Many scientists, including myself, spent all week at the Space Telescope Science Institute analyzing the data and generating color images and maps of the impact scars in Jupiter’s clouds. Because the telescope mirror had recently been corrected, the beautiful details visible in every image were amazing. “Since then, I find that every new image is just as exciting and awe-inspiring. Perhaps one of my favorite images of Jupiter is from 2014 [#97]. We were using Hubble to study changes in the Great Red Spot, and when we began to process the images, we realized Ganymede’s shadow was directly in the way! “It was just incredibly poor timing, but it made for a spectacular and fun image.” — Dr. Amy A. Simon Senior Scientist for Planetary Atmospheres NASA Goddard Space Flight Center Greenbelt, Maryland