Tracking Changes in the Trifid Nebula With the Hubble
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Tracking Changes in the Trifid Nebula With the Hubble

Back in 1997, the Hubble Space Telescope imaged the spectacular Trifid Nebula, a region of active star-formation. Now the telescope has revisited the Trifid. By comparing both images, astronomers have tracked some changes that tell them about how young stars behave and evolve.