2025年10月3日
潘朵拉星系团
影像提供: NASA, ESA, CSA, Ivo Labbe (Swinburne), Rachel Bezanson (University of Pittsburgh), 影像处理: Alyssa Pagan (STScI)
说明: 这幅深空马赛克影像展示了由詹姆斯·韦伯太空望远镜的近红外相机（NIRCam）记录星系团Abell 2744的壮丽景象。Abell 2744也被称为潘朵拉星系团，它似乎是由三个不同的大质量星系团合并而成的庞然结构。它距离约35亿光年远，位于玉夫座方向。受暗物质主导，这个巨型星系团扭曲并改变时空的结构，引力透镜效应使得更遥远的天体也被观测到。许多透镜源比潘朵拉星系团更红，它们是早期宇宙中非常遥远的星系，它们的透镜影像被拉伸和扭曲成弧线。当然，独特的绕射尖峰标示了前景银河系的恒星。在潘朵拉星系团的估计距离上，这个宇宙盒子横跨约600万光年。但别惊慌。你可以在2分钟的影片导览中探索这个引人入胜的区域。
明日的图片: IOMN
Due to the lapse in federal government funding, NASA is not updating APOD website. We sincerely regret this inconvenience.
由于美国联邦政府资金中断，NASA目前暂停更新APOD网站。对此带来的不便，我们深感抱歉。
英文原文:
Explanation: This deep field mosaicked image presents a stunning view of galaxy cluster Abell 2744 recorded by the James Webb Space Telescope’s NIRCam. Also dubbed Pandora’s Cluster, Abell 2744 itself appears to be a ponderous merger of three different massive galaxy clusters. It lies some 3.5 billion light-years away, toward the constellation Sculptor. Dominated by dark matter , the mega-cluster warps and distorts the fabric of spacetime, gravitationally lensing even more distant objects. Redder than the Pandora cluster galaxies, many of the lensed sources are very distant galaxies in the early Universe, their lensed images stretched and distorted into arcs. Of course, distinctive diffraction spikes mark foreground Milky Way stars. At the Pandora Cluster’s estimated distance, this cosmic box spans about 6 million light-years. But don’t panic. You can explore the tantalizing region in a 2 minute video tour.
