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

超新星安可: 多次观测到的第二次超新星爆发

An image shows a cluster of galaxies with unusual arcs. The arcs are background galaxies distorted by the gravitational lens effect of the foreground cluster. The background galaxy shows several spots that are supernovas occurring in the galaxy. Please see the explanation for more detailed information.
图像显示了一个带有异常弧线的星系团。这些弧线是受前景星系团引力透镜效应扭曲的背景星系。背景星系中出现了几个斑点,这些斑点是星系中发生的超新星爆发。有关更多详细信息,请参阅说明。

天文·每日一图

彗星莱蒙的离子尾巴变化

A comet with a green head at the bottom and a complex tail extending toward the top is shown, horizontally side by side, five times. Please see the explanation for more detailed information.
一颗彗星,底部呈绿色,顶部有一条复杂的彗尾,水平并排五次出现。有关更多详细信息,请参阅说明。

天文·每日一图

土星上的长期风暴系统

The planet Saturn is shown in infrared with great detail visible on its cloud tops. The rings appear as a thin blue horizontal line. She shadow of the rings appear as curving dark lines on the clouds. Near the top one of the tan cloud bands shows appears quite jumbled. Please see the explanation for more detailed information.
土星在红外图像中清晰可见其云层顶部的细节。土星环呈现为一条细细的蓝色水平线。土星环的阴影在云层上呈现为弯曲的暗线。靠近顶部的一条棕褐色云带显得相当混乱。有关更多详细信息,请参阅说明。

天文·每日一图

旋转的月亮

See Explanation. Clicking on the video will download the highest resolution version available.
请参阅说明。单击视频将下载可用的最高分辨率版本。

天文·每日一图

NGC 6960: 女巫的扫帚星云

A starfield is shown that has a multi-filament nebula flowing across it horizontally. The most prominent colors are red and blue. Please see the explanation for more detailed information.
图中显示的星场中,多丝状星云水平流动。最突出的颜色是红色和蓝色。有关更多详细信息,请参阅说明。

天文·每日一图

彗星莱蒙增亮

A starfield is shown that has a bright comet. The comet shows a green head on the lower left and an ion tail with significant structure extending out to the upper right. Please see the explanation for more detailed information.
图中显示的星场中有一颗明亮的彗星。彗星的左下方有一个绿色的彗核,右上方则延伸出一条带有显著结构的离子尾。有关更多详细信息,请参阅说明。

天文·每日一图

双彗星同框于一片天空

A starfield is shown that has two short streaks running diagonally. At closer inspection, they are two comets both with white-green heads and white tails. Please see the explanation for more detailed information.
星空呈现出两条斜向的短条纹。仔细观察,会发现它们是两颗彗星,彗核和彗尾均为白绿色。有关更多详细信息,请参阅说明。

天文·每日一图

火星上的神秘豹纹: 岩石斑点之谜

Part of a large rock on Mars is shown being mostly orange. On the rock are several irregular light-colored areas surrounded by a dark border. The spots are only millimeters across but might be a remnant biosignature of ancient Martian life. Please see the explanation for more detailed information.
图中火星上一块大型岩石的一部分,大部分呈橙色。岩石上有几个不规则的浅色区域,周围环绕着深色边框。这些斑点直径只有几毫米,但可能是古代火星生命残留的生物特征。有关更多详细信息,请参阅说明。

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