斯皮策的科学家们说，核状星云中较大颗粒的存在暗示，星云已有相当的年纪，而且它拥有很多快速形成的行星。
The presence of bigger grains in a core cloud, Spitzer scientists say, suggests the cloud is relatively old and that it hosts faster-forming planets.
9月24日发布的斯皮策空间望远镜短红外波图像里，星光在黑暗的核状云中(中间图片)闪耀开来，这片星云处在更巨大的星云里，该星云被称作L183。
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.
当我们渴望一些东西，比如说食物，水，或者药品，其他可以得到的东西，大脑深处的两个地方，腹侧表皮和尾核状体就会活动。
When we're craving things like food, water, or drugs, or anticipating getting them, two areas deep within the brain, the ventral tegmental area and caudate nucleus, are active.
应用推荐