保护地球，探索宇宙，发现文明
一个巨大的粉红色斑点星系，像一个轮子，内部有一个小的椭圆形的内环，中间是尘土飞扬的蓝色。左边有两个较小的螺旋星系，在黑色背景下大小大致相同。 影像来源：NASA, ESA, CSA, STScI NASA的詹姆斯·韦伯太空望远镜观察了混乱的车轮星系，揭示了有关恒星形成和星系中心黑洞的新细节。韦伯强大的红外观测产生了这张车轮星系和两个较小伴星系的详细图像，背景是许多其他星系。这张图片提供了一个新的视角，展示了车轮星系在数十亿年中是如何变化的。 车轮星系位于约5亿光年外的玉夫座中，是一个罕见的景象。它的外观，很像马车的车轮，这是一个激烈事件的结果——一个大的螺旋星系和一个在这张照片中看不到的小星系之间的高速碰撞。星系比例的碰撞会导致所涉及的星系之间发生一系列不同的、较小的事件；车轮星系也不例外。 这次碰撞最显著地影...
2022年8月2日 A Moon Dressed Like Saturn Image Credit & Copyright: Francisco Sojuel Explanation: Why does Saturn appear so big? It doesn’t — what is pictured are foreground clouds on Earth crossing in front of the Moon. The Moon shows a slight crescent phase with most of its surface visible by reflected Earthlight known as ashen glow. The Sun di...
NASA celebrates the life of Nichelle Nichols, Star Trek actor, trailblazer, and role model, who symbolized to so many what was possible. She partnered with us to recruit some of the first women and minority astronauts, and inspired generations to reach for the stars. In this photo from February 2012, Nichols was a featured guest speaker in the Building 8 aud...
2022年8月1日 Mountains of Dust in the Carina Nebula Image Credit: NASA, ESA, Hubble; Proccessing: Javier Pobes Explanation: It’s stars versus dust in the Carina Nebula and the stars are winning. More precisely, the energetic light and winds from massive newly formed stars are evaporating and dispersing the dusty stellar nurseries in which they formed. Loc...