研究发现洋流可能会影响木卫二冰壳的旋转
研究揭示了木星卫星木卫二的冰壳如何以不同于其内部的速度旋转的新解释。NASA的欧罗巴快船将近距离观测。
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Crew-5夜间溅落
The SpaceX Dragon Endurance spacecraft is seen as it lands with Crew-5 mission members aboard on Saturday, March 11, 2023. The crew returned in a parachute-assisted splashdown at 9:02 p.m. EST. During the 156.5 days they spent aboard the International Space Station as part of Expedition 68, Crew-5 p
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彩虹树
2023年3月13日 Rainbow Tree Image Credit & Copyright: Eric Houck Explanation: What lies at the end of a rainbow? Something different for everyone. For the photographer taking this picture, for example, one end of the rainbow ended at a tree. Others nearby, though, would likely see the rainbow end s
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土卫七: 有古老陨石坑的卫星
2023年3月12日 Saturn’s Hyperion: A Moon with Odd Craters Image Credit: NASA, ESA, JPL, SSI, Cassini Imaging Team Explanation: What lies at the bottom of Hyperion’s strange craters? To help find out, the robot Cassini spacecraft that once orbited Saturn swooped past the sponge-textured moon
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贝努小行星的立体图像
2023年3月11日 3D Bennu Image Credit: NASA, GSFC, U. Arizona – Stereo Image Copyright: Patrick Vantuyne Explanation: Put on your red/blue glasses and float next to asteroid 101955 Bennu. Shaped like a spinning toy top with boulders littering its rough surface, the tiny Solar System world is about
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猎户座大星云与跑步者星云
2023年3月10日 Orion and the Running Man Image Credit & Copyright: Abraham Jones Explanation: Few cosmic vistas excite the imagination like The Great Nebula in Orion. Visible as a faint celestial smudge to the naked-eye, the nearest large star-forming region sprawls across this sharp telescopic ima
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一缕阳光
The Moon is seen passing in front of the Sun during a solar eclipse from Ross Lake, Northern Cascades National Park, Washington on Aug. 21, 2017. A total solar eclipse swept across a narrow portion of the contiguous United States from Lincoln Beach, Oregon to Charleston, South Carolina. A partial so
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DART太空船与双卫一
2023年3月9日 DART vs Dimorphos Image Credit: NASA, Johns Hopkins APL, DART Explanation: On the first planetary defense test mission from planet Earth, the DART spacecraft captured this close-up on 26 September 2022, three seconds before slamming into the surface of asteroid moonlet Dimorphos. The space
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数百万个星系出现在NASA南希·格雷斯·罗曼太空望远镜的新模拟图像中
科学家们创建了一个庞大的合成巡天，展示了我们对南希·格雷斯·罗曼太空望远镜未来观测的期待。虽然它只代表了真实未来调查的一小部分，但这个模拟版本包含了惊人的数量——3300万个星系，以及我们银河系中的20万颗前景恒星。