• RIT astronomer Sukanya Chakrabarti and her colleagues analyzed near-infrared data from the European Southern Observatory's VISTA telescope to discover four young stars clustered in the constellation Norma.The stars are 300,000 light-years distant, well beyond the edge of the Milky Way's disk.
  • "These young stars are likely the signature of this predicted galaxy," she says, suggesting the dwarf galaxy is difficult to see through the obscuring dust of our own galaxy and because the majority of its mass is invisible dark matter.
  • Chakrabarti's 2009 study had predicted a specified mass and location for the unseen galaxy, and radiation from the four news discovered stars, known as Cepheid variables, allowed her to derive accurate distances and test her prediction.

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