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Black Holes Hide in Our Cosmic Backyard
Galaxy NGC 1448 with active galactic nucleus.
Credit: Carnegie-Irvine Galaxy Survey/NASA/JPL-Caltech
Monster black holes sometimes lurk behind gas and dust, hiding from the gaze of most telescopes. But they give themselves away when material they feed on emits high-energy X-rays that NASA's NuSTAR (Nuclear Spectroscopic Telescope Array) mission can detect.
From Jet Propulsion Laboratory/NASA
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