Ionized by energetic starlight, a hydrogen atom emits the characteristic red H-alpha light as its single electron is recaptured and transitions to lower energy states.

氢原子被高能的恒星光离子化之后，在它的单个电子重新被捕获并跃迁到低能级上时会放出典型的红色h - alpha光。

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It reflects the changes of energetic state of plutonium atom in the process forming plutonium hydride.

揭示了钚原子在形成氢化物过程中的能态变化。

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Although the probe would carry no cameras in the classic sense, its onboard instruments would include a low-energy charged particle experiment, a magnetometer, a cosmic ray detector, and an energetic neutral atom detector.

FORBES: Jump-Starting A Mission To Interstellar Space