And we detect this "cosmic background radiation" coming more or less evenly from all directions, forming a background beyond the stars.

从各种方向几乎完全均匀地发射，形成了所有星星的背景。

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These quasar jets are formed when electrons emitted from a black hole impact with cosmic background radiation left by the big bang, giving astronomers clues about the conditions in the early universe.

这些类星体的河外星系是由当黑洞所发射的电子与大爆炸所遗留下来的宇宙背景辐射碰撞后所形成的，它为天文学家提供了关于早期宇宙的线索。

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UHECRs tend to collide with photons of the cosmic microwave background—pervasive radiation that is a relic of the early universe.

UHECRs 往往会与宇宙微波背景中的光子相撞，这种辐射是早期宇宙的遗迹，无处不在。

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This new photogenic moment, released Thursday, comes courtesy of the European Space Agency's Planck space telescope, which detects cosmic microwave background radiation -- the light left over from the Big Bang.

CNN: Better 'baby picture' of universe emerges

In 1966 Kenneth Greisen, Vadim Kuzmin and Georgiy Zatsepin showed that high-energy charged particles (cosmic rays are mostly atomic nuclei, and thus positively charged) should be slowed by collisions with the photons of the cosmic microwave background (radiation left over from the Big Bang that permeates all space).

ECONOMIST: Cosmic rays: They came from outer space | The

They have produced highly accurate maps of the Cosmic Microwave Background (CMB) radiation, which has its origins in the very early stages of the Universe.

BBC: Pictures of the early Universe