作者姓名:Samuel Chan

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

天文·每日一图

火箭发射烟云笼罩图森市

A horizon including the Tucson skyline and Saguaro cacti shows the sky just after sunset. Prominent in the sky are clouds oddly shaped like a fish — but are the launch plume of a recently launched rocket from California. Please see the explanation for more detailed information.
日落之后,地平线上映照着图森的天际线和仙人掌。天空中一朵朵形状奇特的云朵格外醒目,形似一条鱼——但这却是最近从加州发射的火箭的发射羽流。有关更多详细信息,请参阅说明。

天文·每日一图

IC 1396中的不寻常云球

The featured image shows an interstellar gas globule that looks like a monster superposed against a glowing red background. Please see the explanation for more detailed information.
这张特色图片展示了一个星际气体球,它看起来像一个怪物,叠加在炽热的红色背景上。有关更多详细信息,请参阅说明。

天文·每日一图

柠檬树

A tree is seen silhouetted against a night sky filled with stars. Above the tree with its tail pointing nearly vertically is a comet: Comet Lemmon. Please see the explanation for more detailed information.
一棵树的轮廓映衬着繁星点点的夜空。树的上方,一颗彗尾几乎垂直的彗星:彗星莱蒙。有关更多详细信息,请参阅说明。

天文·每日一图

欧罗巴上的所有水

Earth without water is shown on the right, while Jupiter’s moon Europa is shown on the left. Superposed on each object is a blue sphere estimating the amount of water each object contains. The blue spheres are about the same size. Please see the explanation for more detailed information.
右侧显示的是没有水的地球,左侧显示的是木星的卫星木卫二。每个物体上都叠加了一个蓝色球体,用于估算每个物体所含的水量。这些蓝色球体大小大致相同。有关更多详细信息,请参阅说明。

天文·每日一图

NGC 7380: 巫师星云

A starfield is shown surrounding a bright gaseous nebula in red with bits of white and blue. Pillars of dust and gas appear around the interior of the nebula pointing to energetic stars in a cluster in the nebula. Please see the explanation for more detailed information.
图中星场环绕着一个明亮的红色气态星云,并点缀着白色和蓝色。星云内部出现尘埃和气体柱,指向星云中一个星团中的高能恒星。有关更多详细信息,请参阅说明。

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