Observe the sun and you'll know light rules all.

看每天的太阳就知道光明统管所有。

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And NASA used a plane and a Pegasus rocket to launch a satellite. The satellite will observe the sun, in hopes of improving space weather forecasting.

美国国家航空和宇宙航行局利用一架飞机和一枚飞马火箭发射了一枚卫星。这枚卫星将要探测太阳，并有望提高太空天气预测能力。

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The earth's atmosphere filters out much of the solar radiation; thus, earth based instruments have only been able to observe the sun in a minor degree.

地球大气层过滤出很多日全食辐射物。因而，在较小的程度范围内，地球轨道上空的仪器设备可以用来观测太阳。

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During an eclipse scientist are able to measure the effect of the sun on the Earth's atmosphere and observe the violent magnetic storms in outer atmosphere of the sun - the corona.

BBC: 11 August

The asteroid's position was very close to the sun, so astronomers had to observe it when the sky was dark.

CNN: Phew! Asteroid to miss Earth in 2040, NASA says

The Maya used their mathematical knowledge along with celestial observations to finesse a calendar created by the Olmec which is a culture from the Mexican Gulf Coast and to create monuments to observe and commemorate movements of the moon, the sun, and Venus.

UNESCO: Culture