Astronomers don't know if these same life-generating processes are taking place around stars that are cooler than our sun, but the Spitzer observations show their disk chemistry is different.

天文学家不知道同样的生命产生进程会不会在那些比我们太阳更冷的恒星周围发生，但斯皮策观测站发现他们的尘埃盘的化学特性是不同的。

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Astronomers don't know if these samelife-generating processes are taking place around stars that are coolerthan our sun, but the Spitzer observations show their disk chemistry isdifferent.

天文学家不知道同样的生命产生进程会不会在那些比我们太阳更冷的恒星周围发生，但斯皮策观测站发现他们的尘埃盘的化学特性是不同的。

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One disk of the sun shines like a pendant on a celestial necklace in the first known analemma photo to feature a total solar eclipse.

在突出了日全食特点已知最早的8字曲线照片中，有一个太阳圆盘像天体项链上的垂饰似的闪耀光芒。

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People in a much larger region of the world can anticipate seeing a partial solar eclipse, in which the moon blocks only a fraction of the sun's disk.

CNN: Africa awaits total eclipse of the sun

The simulation detailed in the new paper is based on a sphere centered on our sun that stretches through the disk of our Milky Way galaxy out to a distance of almost a 1000 light years.

FORBES: Free-Floating, Nearby Black Holes Detectable By Decade's End, New Study Reports

By comparison, meteors of the type that hit Russia originate at the earliest reaches of time in the disk of gas and dust that swirled around the early sun.

WSJ: Russia Meteor Was Largest in More Than a Century