保护地球，探索宇宙，发现文明
2023年6月7日 M94: A Double Ring Galaxy Image Credit & Copyright: Brian Brennan Explanation: Most galaxies don’t have any rings of stars and gas — why does M94 have two? First, spiral galaxy M94 has an inner ring of newly formed stars surrounding its nucleus, giving it not only an unusual appearance but also a strong interior glow. A leading ori...
This colorful zinnia, shown in an image from Jan. 22, 2016, grew aboard the International Space Station as part of the VEG-01 experiment. This investigation assessed the on-orbit function and performance of the Veggie facility, focusing on the growth and development of seedlings in the spaceflight environment and the composition of microbial flora on the pla...
天文学中最基本的问题之一是：第一批恒星和星系是如何形成的？NASA的詹姆斯·韦伯太空望远镜已经为这个问题提供了新的见解。
2023年6月6日 Star Eats Planet Illustrative Video Credit: K. Miller & R. Hurt (Caltech, IPAC) Explanation: It’s the end of a world as we know it. Specifically, the Sun-like star ZTF SLRN-2020 was seen eating one of its own planets. Although many a planet eventually dies by spiraling into their central star, the 2020 event, involving a Jupiter-like planet, w...
2023年6月5日 In the Center of the Trifid Nebula Image Credit & Copyright: Martin Pugh Explanation: What’s happening at the center of the Trifid Nebula? Three prominent dust lanes that give the Trifid its name all come together. Mountains of opaque dust appear near the bottom, while other dark filaments of dust are visible threaded throughout the nebu...
詹姆斯·韦伯太空望远镜拍摄的这张照片上，尘埃和明亮的星团交织在一起。明亮的气体和恒星卷须属于棒旋星系NGC 5068，在这张图片的左上角可以看到它明亮的中央棒状结构——这是由韦伯两台仪器所合成。
U.S. Poet Laureate Ada Limón reads her poem for the Europa Clipper mission during an event with NASA, Thursday, June 1, 2023, at the Library of Congress in Washington. The original poem, entitled “In Praise of Mystery: A Poem for Europa,” connects two water worlds – Earth and Europa. The poem will be engraved on a plaque carried aboard the Europa Clipper spa...
2023年6月4日 Color the Universe Image Credit: Unknown, possibly C. Flammarion Explanation: Wouldn’t it be fun to color in the universe? If you think so, please accept this famous astronomical illustration as a preliminary substitute. You, your friends, your parents or children, can print it out or even color it digitally. While coloring, you might be inte...
NASA又整活了，邀请公众填写自己的名字，伴随欧罗巴快船（Europa Clipper）任务，航行2.9亿公里（1.8亿英里），前往木星轨道，通过一系列的飞越，来研究木卫二，这是一个可能支持生命存在的海洋世界。 木卫二快船预计于2024年10月发射升空，发射窗口期21天，预计于2030年4月抵达。报名地址详见： https://europa.nasa.gov/message-in-a-bottle/sign-on/ 另外一同前往的还有美国诗人艾达·李蒙（Ada Limón）写的一首诗，《赞美神秘：献给木卫二的诗》 听艾达朗读这首诗 In Praise of Mystery: A Poem for Europa Arching under the night sky inky with black expansi...
2023年6月3日 Charon: Moon of Pluto Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Institute, U.S. Naval Observatory Explanation: A darkened and mysterious north polar region known to some as Mordor Macula caps this premier high-resolution view. The portrait of Charon, Pluto’s largest moon, was captured by New Horizons near the spacecraft&...