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.