NASA's Hubble Space Telescope is providing strong evidence that white dwarfs, the burned-out relics of stars, are given a "kick" when they form. The sharp vision of Hubble's Advanced Camera for Surveys uncovered the speedy white dwarfs in the ancient globular star cluster NGC 6397, a dense swarm of hundreds of thousands of stars. Credit: NASA, ESA, and H. Richer (University of British Columbia)Credit: NASA, ESA, and H. Richer (University of British Columbia)

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Keywords: astronomical, astronomy, deep, galaxies, galaxy, hst, hubble, jet, jpl, laboratory, nebula, orbit, probe, propulsion, research, science, scientific, space, star, supernova, telescope