保护地球，探索宇宙，发现文明
The Operational Land Imager-2 on Landsat 9 captured this image of Simsbury, Connecticut on September 15, 2022. Martin Luther King Jr. and other students from Morehouse College worked summers on a tobacco farm, Meadowood, in Simsbury in 1944 and 1947 to earn money for tuition. King’s time in Connecticut impacted his outlook and trajectory as a minister and ci...
2024年1月14日 Dragon Aurora over Iceland Image Credit & Copyright: Jingyi Zhang & Wang Zheng Explanation: Have you ever seen a dragon in the sky? Although real flying dragons don’t exist, a huge dragon-shaped aurora developed in the sky over Iceland in 2019. The aurora was caused by a hole in the Sun’s corona that expelled charged particles ...
2024年1月13日 Circling the Sun Image Credit & Copyright: Radoslav Zboran Explanation: Earth’s orbit around the Sun is not a circle, it’s an ellipse. The point along its elliptical orbit where our fair planet is closest to the Sun is called perihelion. This year, perihelion was on January 2 at 01:00 UTC, with the Earth about 3 million miles close...
2024年1月12日 Good Morning Moon Image Credit & Copyright: Michael Luy, Trier Observatory, TWAN Explanation: Yesterday, the Moon was New. But on January 9, early morning risers around planet Earth were treated to the sight of an old Moon, low in the east as the sky grew bright before dawn. Above the city of Saarburg in Rhineland-Palatinate, western Germany, ...
这张色彩缤纷的节日图片显示了不同类型的光，其中包含了不止一颗，而是至少两颗爆炸恒星的残骸。这个超新星遗迹被称为剑鱼座30B（简称30 Dor B），它是过去800万至1000万年来恒星不断形成的更大空间区域的一部分。它是一个由气体、年轻恒星、高能激波和过热气体组成的复杂景观，位于银河系的一个小型卫星星系大麦哲伦云中，距离地球160,000光年。
2024年1月11日 Quadrantids of the North Image Credit & Copyright: 염범석 Yeom Beom-seok Explanation: Named for a forgotten constellation, the Quadrantid Meteor Shower puts on an annual show for planet Earth’s northern hemisphere skygazers. The shower’s radiant on the sky lies within the old, astronomically obsolete constellation Quadrans Muralis. Th...
An Orbital Sciences Corporation Antares rocket is seen as it launches from Pad-0A at NASA’s Wallops Flight Facility, Thursday, January 9, 2014, Wallops Island, VA. Antares is carrying the Cygnus spacecraft on a cargo resupply mission to the International Space Station. The Orbital-1 mission is Orbital Sciences’ first contracted cargo delivery fli...
X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScl; IR: NASA/ESA/CSA/STScl/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand For the first time, astronomers have combined data from NASA’s Chandra X-ray Observatory and James Webb Space Telescope to study the well-known supernova remnant Cassiopeia A (Cas A). This work h...
ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/NOIRLab/NSF/AURA; Acknowledgment: L. Shatz This image from the NASA/ESA Hubble Space Telescope features a richness of spiral galaxies: the large, prominent spiral galaxy on the right side of the image is NGC 1356; the two apparently smaller spiral galaxies flanking it are LEDA 467699 (above it)...
2024年1月10日 The Light, the Dark, and the Dusty Image Credit & Copyright: Gábor Galambos Explanation: This colorful skyscape spans about three full moons across nebula rich starfields along the plane of our Milky Way Galaxy toward the royal northern constellation Cepheus. Near the edge of the region’s massive molecular cloud some 2,400 light-years aw...