保护地球，探索宇宙，发现文明
A SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is launched on NASA’s SpaceX Crew-3 mission to the International Space Station with NASA astronauts Raja Chari, Tom Marshburn, Kayla Barron, and ESA (European Space Agency) astronaut Matthias Maurer onboard, Wednesday, Nov. 10, 2021, at NASA’s Kennedy Space Center in Florida. NASA’s...
2021年11月12日 M33: The Triangulum Galaxy Image Credit & Copyright: Bernard Miller Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxie...
2021年11月11日 NGC 1333: Stellar Nursery in Perseus Image Credit & Copyright: Michael Sherick Explanation: NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by interstellar dust. A mere 1,000 light-years distant toward the heroic constellation Perseus, it lies at the edge of a large, st...
During its 36th low pass over Jupiter, NASA’s Juno spacecraft captured this view of striking cloud bands and swirls in the giant planet’s mid-southern latitudes. The dark, circular vortex near the center of the image is a cyclone that spans roughly 250 miles (about 400 kilometers). The color at its center is likely to be the result of descending winds that c...
2021年11月10日 Video of a Green Flash Video Credit & Copyright: Paolo Lazzarotti Explanation: Many think it is just a myth. Others think it is true but its cause isn’t known. Adventurers pride themselves on having seen it. It’s a green flash from the Sun. The truth is the green flash does exist and its cause is well understood. Just as the sett...
2021年11月8日星期一，SpaceX载人龙飞船奋进号在佛罗里达州彭萨科拉海岸外的墨西哥湾溅落后不久，SpaceX GO Navigator回收船上的SpaceX载人龙飞船奋进号内可以看到欧空局（ESA）宇航员托马斯·佩斯奎特（左）、NASA宇航员梅根·麦克阿瑟和谢恩·金布罗以及日本宇宙航空研究开发机构（JAXA）宇航员星出彰彦（右）。NASA的SpaceX Crew-2任务是SpaceX载人龙飞船和猎鹰9号火箭前往国际空间站的第二次运行任务，是NASA商业宇航员计划的一部分。 影像来源：NASA/Aubrey Gemignani NASA的SpaceX Crew-2宇航员周一乘坐奋进号飞船安全溅落在佛罗里达州海岸的墨西哥湾，完成了NASA第二次前往国际空间站的长期商业宇航员任务。这次任务创造了美国载人航天器...
The SpaceX Crew Dragon Endeavour spacecraft is lifted onto the GO Navigator recovery ship after it landed with NASA astronauts Shane Kimbrough and Megan McArthur, Japan Aerospace Exploration Agency (JAXA) astronaut Aki Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet in the Gulf of Mexico off the coast of Pensacola, Florida, Monday, Nov. 8, ...
2021年11月09日 All of These Space Images are Fake Except One Image Credit: M. J. Smith et al. (U. Hertfordshire) Explanation: Why would you want to fake a universe? For one reason — to better understand our real universe. Many astronomical projects seeking to learn properties of our universe now start with a robotic telescope taking sequential images of t...
This image shows knots of cold, dense interstellar gas where new stars are forming. These Free-floating Evaporating Gaseous Globules (frEGGs) were first seen in Hubble’s famous 1995 image of the Eagle Nebula. Because these lumps of gas are dark, they are rarely seen by telescopes. They can be observed when the newly forming stars ignite, their intense ultrav...
2021年11月08日 A Filament Leaps from the Sun Video Credit & Copyright: Stéphane Poirier Explanation: Why, sometimes, does part of the Sun’s atmosphere leap into space? The reason lies in changing magnetic fields that thread through the Sun’s surface. Regions of strong surface magnetism, known as active regions, are usually marked by dark sunspot...