The featured image shows a starfield with a multi-colored nebula in the center. The nebula is quite filamentary but appears to some like a bat. Please see the explanation for more detailed information.
这张特色图片展示了一片星空，中央有一个色彩斑斓的星云。星云呈丝状，但有些人觉得它像一只蝙蝠。有关更多详细信息，请参阅说明。
A dark sky shows bright comet with its tails extending diagonally from the lower left. Two tails are visible for the comet — a long blue tail and a shorter wider white tail. Oddly, a wiggly tan stream appears to be a third tail — but is actually the dust from a dissipated meteor. Please see the explanation for more detailed information.
昏暗的天空中，一颗明亮的彗星的彗尾从左下方斜向延伸。这颗彗星有两条彗尾——一条长长的蓝色彗尾和一条较短较宽的白色彗尾。奇怪的是，一条蜿蜒的棕褐色流线看起来像是第三条彗尾——但实际上是一颗消散的流星的尘埃。有关更多详细信息，请参阅说明。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
A mountain range is shown in the foreground with a bright comet visible above it. The comet shows tails that are long and bright with the longer tail appearing light blue. Please see the explanation for more detailed information.
前景中可见一座山脉，其上方可见一颗明亮的彗星。这颗彗星拖着长长的明亮彗尾，其中较长的彗尾呈浅蓝色。有关更多详细信息，请参阅说明。
A starfield is shown filled with colorful gas glowing in different colors, and dark dust. Please see the explanation for more detailed information.
图中显示的星场充满了发出不同颜色光芒的彩色气体和暗色尘埃。有关更多详细信息，请参阅说明。
A night sky is seen over a lake. The sky contains numerous stars including the Big Dipper asterism. Prominent in the sky is a comet with a long tail. Both the Big Dipper and the comet are seen reflected in the still water of the lake. Please see the explanation for more detailed information.
夜空笼罩着一片湖面。天空中繁星点点，包括北斗七星。一颗拖着长彗尾的彗星在夜空中格外显眼。北斗七星和彗星的倒影映照在平静的湖面上。有关更多详细信息，请参阅说明。
The nucleus of a comet is shown against the dark of deep space. The comet’s surface is jagged and irregular. A stream of dust and gas drifts off to the upper left. Please see the explanation for more detailed information.
彗星的核在漆黑的深空映衬下清晰可见。彗星表面凹凸不平，一股尘埃和气体飘向左上方。有关更多详细信息，请参阅说明。
