The most damaging radiation are gamma rays and x-rays; energetic alpha rays (streams of helium nuclei) and beta rays (electrons) can also damage cells.

最具破坏力的辐射是伽马射线和X射线；能量强大的阿尔法射线（氦核能量流）和贝塔射线（电子流）也可以破坏细胞组织。

youdao

The term solar sail is a misnomer, since Count Dooku's interstellar sloop USES an as-yet unknown brand of energetic propulsion far more exotic than stellar radiation.

“太阳帆船”这一称呼其实并不恰当，因为杜库伯爵的星际小帆船利用的是一种至今仍不清楚类型的能量推进力，它远比恒星辐射更奇特。

youdao

The Sun's magnetic field and solar wind - mainly in the form of electrons and protons coming out of the Sun - protects the entire Solar System by acting as a sort of shield from cosmic rays (very energetic particles and radiation from outer space).

BBC: Viewpoint: The Sun and climate change

Gamma rays are high-frequency electromagnetic radiation essentially, extremely energetic light.

ECONOMIST: A new gamma-ray telescope has just been launched

Because radiation from the Crab nebula is so energetic, the electrons that created it must have been travelling very close to the speed of light so close that the difference between the two speeds would bump up against Planck-scale graininess, and show up in the spectrum of the radiation.

ECONOMIST: Planck-scale physics