The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radiogalaxies, quasars, and pulsars.
从可见光扩展到无线电波,再到 X 射线和伽马射线,天文学总是会发现不寻常的物体,如射电星系、类星体和脉冲星。
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Recent observations on microwave background radiation and distribution of distant radiogalaxies demonstrate that there exists dipole anisotropy in relation to the motion of the Earth.