Scientists say they have discovered evidence of the “dynamite” that blew up the Big Bang.
Scientists Hear Earliest Echoes of Big Bang
![The sun sets behind BICEP2 (in the foreground) and the South Pole Telescope (in the background).](https://gdb.voanews.com/707A0684-C9EE-49A6-BB65-604F7020B584_w1024_q10_s.jpg)
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The sun sets behind BICEP2 (in the foreground) and the South Pole Telescope (in the background).
![The BICEP2 telescope's focal plane consists of 512 superconducting microwave detectors, developed and produced at NASA's Jet Propulsion Laboratory.](https://gdb.voanews.com/7ED30E63-9F5A-404C-A72B-02C7139952B5_w1024_q10_s.jpg)
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The BICEP2 telescope's focal plane consists of 512 superconducting microwave detectors, developed and produced at NASA's Jet Propulsion Laboratory.
![The tiny temperature fluctuations of the cosmic microwave background (shown here as color) trace primordial density fluctuations in the early universe that seed the later growth of galaxies.](https://gdb.voanews.com/35EF1D5B-6EB2-43BA-901C-54B185044566_w1024_q10_s.jpg)
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The tiny temperature fluctuations of the cosmic microwave background (shown here as color) trace primordial density fluctuations in the early universe that seed the later growth of galaxies.
![Gravitational waves from inflation generate a faint but distinctive twisting pattern in the polarization of the cosmic microwave background, known as a 'curl' or B-mode pattern.](https://gdb.voanews.com/B80852AA-7839-4727-9AAA-0C969EAAE4AA_w1024_q10_s.jpg)
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Gravitational waves from inflation generate a faint but distinctive twisting pattern in the polarization of the cosmic microwave background, known as a 'curl' or B-mode pattern.