木星上有一个大“黑洞”？

Stunning new images shot by NASA's Juno spacecraft appear to show a massive black hole on the surface of Jupiter.

美国宇航局“朱诺号”宇宙飞船拍摄的令人震惊的新图像显示，木星表面有一个巨大的黑洞。

The photographs were taken earlier this month as Juno's elliptical orbit took it close to the gas giant - only 8000km from the top of its clouds.

这些照片是在本月早些时候拍摄的，当时“朱诺号”的椭圆轨道将其靠近这颗气态巨星——距离其云层顶部仅8000公里。

Photo credit: NASA

But rather than an abyss from which there is no escape, Jupiter's latest feature is just a shadow cast by one of its moons, Io, as it blocked the sun during an eclipse.

不过，木星的最新特征并不是无法逃脱的深渊，而是它的卫星之一木卫一(Io)在日食期间挡住太阳时投下的阴影。

Io is about the same size as Earth's moon. Because it's so far away, in the Jovian sky Io appears about four times the size as the sun - so its shadow is large and relatively sharp, compared to eclipses here on Earth, Universe Today reports.

木卫一的大小和地球的月球差不多。据《今日宇宙》报道，由于木卫一离地球太远，在木星的天空中，木卫一的大小大约是太阳的四倍，所以与地球上的日蚀相比，木卫一的阴影更大，也更锐利。

Photo credit: NASA

Last week it was reported a volcano is set to erupt on Io.

上周有报道称，木卫一火山即将喷发。

Jupiter's other distinctive feature - its giant red spot - is a storm that is expected to dissipate one day.

木星的另一个显著特征——它的巨大红斑——是一场预计需一天才会消散的风暴。