保护地球，探索宇宙，发现文明
The last rays of an orbital sunset begin fading in Earth’s atmosphere silhouetting the cloud tops in this June 24, 2023, photograph from the International Space Station as it orbited 271 miles above the southernmost tip of South America. The space station makes 16 orbits of the Earth in 24 hours, so astronauts on the orbital outpost see 16 sunrises and...
研究人员利用詹姆斯·韦伯太空望远镜发现了迄今为止最遥远的活跃超大质量黑洞。这个名为CEERS 1019的星系在大爆炸后5.7亿年多一点就存在了，它的黑洞比早期宇宙中发现的任何黑洞都要小。
2023年7月6日 Fireworks vs Supermoon Image Credit & Copyright: Michael Seeley Explanation: On July 4, an almost Full Moon rose in planet Earth’s evening skies. Also known as a Buck Moon, the full lunar phase (full on July 3 at 11:39 UTC) was near perigee, the closest point in the Moon’s almost monthly orbit around planet Earth. That qualified th...
使用NASA的詹姆斯·韦伯太空望远镜的研究人员在确认早期星系尘埃来源方面取得了重大进展。
NASA’s X-59 research aircraft moves from its construction site to the flight line – or the space between the hangar and the runway – at Lockheed Martin Skunk Works in Palmdale, California, on June 16, 2023. This milestone kicks off a series of ground tests to ensure the X-59 is safe and ready to fly. The X-59 is designed to fly faster than Mach 1 while reduc...
2023年7月5日 A Map of the Observable Universe Image Credit & Copyright: B. Ménard & N. Shtarkman; Data: SDSS, Planck, JHU, Sloan, NASA, ESA Explanation: What if you could see out to the edge of the observable universe? You would see galaxies, galaxies, galaxies, and then, well, quasars, which are the bright centers of distant galaxies. To expand under...
2023年7月4日 Aurora over Icelandic Waterfall Image Credit & Copyright: Cari Letelier Explanation: It seemed like the sky exploded. The original idea was to photograph an aurora over a waterfall. After waiting for hours under opaque clouds, though, hope was running out. Others left. Then, unexpectedly, the clouds moved away. Suddenly, particles from a large...
这架勇敢的旋翼飞机可能会在未来几周内再次升空。
A full moon was visible behind the Artemis I SLS (Space Launch System) rocket and Orion spacecraft at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on June 14, 2022. The first in an increasingly complex series of missions, Artemis I tested SLS and Orion as an integrated system prior to crewed flights to the Moon. Learn more about observi...
2023年7月3日 Venus in Ultraviolet from Akatsuki Image Credit & Copyright: JAXA, Planet-C Project Team; h/t: Mehmet Hakan Özsaraç Explanation: Why is Venus so different from Earth? To help find out, Japan launched the robotic Akatsuki spacecraft which entered orbit around Venus late in 2015 after an unplanned five-year adventure around the inner Solar Syste...