作者: NASA中文

美国佛罗里达州上空的夜光云

A dawn sky is shown that is black at the top and brown near the horizon. Wispy clouds converge on the right turning from a white to a blue hue. Near the apex of this convergence is a crescent moon. Please see the explanation for more detailed information.
画面中展示的是黎明时分的天空,顶部是黑色,接近地平线的地方是棕色。右侧有几缕云彩汇聚在一起,颜色从白色逐渐变为蓝色。在汇聚的顶端有一弯新月。有关更多详细信息,请参阅说明。

研究物理科学家贾斯汀·理查森

“When I mentor students, their academic [talents] are a given. They’re very bright. They’re very smart. But I mentor them to teach them what they don’t learn in school: how to work with other people, how to seek help, and how to mature from a student to a professional. “ when you fail, it’s OK. Admit what you did wrong, be honest about it, and talk through i...

节日钟声敲响

The ice giant Uranus and its rings steal the show in this Dec. 18, 2023, image from the James Webb Space Telescope. The telescope captured new images of Uranus, revealing detailed features of the planet’s rings and seasonal north polar cap, as well as bright storms near and below the southern border of the cap. This Webb image also shows 14 of the planet’s 2...

冰岛瀑布上空的彩虹极光

2023年12月27日 Rainbow Aurora over Icelandic Waterfall Image Credit & Copyright: Stefano Pellegrini Explanation: Yes, but can your aurora do this? First, yes, auroras can look like rainbows even though they are completely different phenomena. Auroras are caused by Sun-created particles being channeled into Earth’s atmosphere by Earth’s magnetic...

IC 443: 水母星云

2023年12月26日 IC 443: The Jellyfish Nebula Image Credit & Copyright: David Payne Explanation: Why is this jellyfish swimming in a sea of stars? Drifting near bright star Eta Geminorum, seen at the right, the Jellyfish Nebula extends its tentacles from the bright arcing ridge of emission left of center. In fact, the cosmic jellyfish is part of bubble-shape...

大教堂、山峰与月亮

2023年12月25日 Cathedral, Mountain, Moon Image Credit & Copyright: Valerio Minato Explanation: Single shots like this require planning. The first step is to realize that such an amazing triple-alignment actually takes place. The second step is to find the best location to photograph it. But it was the third step: being there at exactly the right time &#821...

丘比特!加油,唐纳和巴瑞!

In this image from Dec. 8, 2017, four reindeer walk past the Balloon Array for Radiation-belt Relativistic Electron Losses, or BARREL, payload on the launch pad at Esrange Space Center near Kiruna, Sweden. BARREL primarily measured X-rays in Earth’s atmosphere near the North and South Poles. These X-rays are caused by electrons that rain down, or precipitate...

NGC 2440: 新白矮星的茧

2023年12月24日 NGC 2440: Cocoon of a New White Dwarf Image Credit: NASA, ESA, Hubble; Processing: H. Bond (STScI), R. Ciardullo (PSU), Forrest Hamilton (STScI) Explanation: What’s that in the center? Like a butterfly, a white dwarf star begins its life by casting off a cocoon of gas that enclosed its former self. In this analogy, however, the Sun would be...

十二月的仲夏夜

2023年12月23日 A December Summer Night Image Credit & Copyright: Ian Griffin (Otago Museum) Explanation: Colours of a serene evening sky are captured in this 8 minute exposure, made near this December’s solstice from New Zealand, southern hemisphere, planet Earth. Looking south, star trails form the short concentric arcs around the rotating planet&#8...

阳光下的183天

2023年12月22日 183 Days in the Sun Image Credit & Copyright: José Zarcos Palma Explanation: A single 183 day exposure with a pinhole camera and photographic paper resulted in this long-duration solargraph. Recorded from solstice to solstice, June 21 to December 21, in 2022, it follows the Sun’s daily arcing path through planet Earth’s skies fro...