infrared dark cloud

基本解释

The infrared image reveals that this dark cloud, called M17 SWex, is forming stars at a furious rate but has not yet spawned the most massive type of stars, known as O stars.
紅外成像揭示了這片叫做M17SWex的深色的雲正在瘋狂地制造新星，但是質量最密的O型星還沒有孵出來。
Starlight bounces off a normally dark, interstellar core cloud (center) inside a larger cloud called L183 in a short-infrared-wavelength Spitzer Space Telescope image released on September 24.
9月24日發佈的斯皮策空間望遠鏡短紅外波圖像裡，星光在黑暗的核狀雲中（中間圖片）閃耀開來，這片星雲処在更巨大的星雲裡，該星雲被稱作L183。