保护地球，探索宇宙，发现文明
In this image from Jan. 9, 2022, NASA astronaut Kayla Barron peered out from a window inside the cupola, the International Space Station’s “window to the world.” Prominent station components in this photograph include the Kibo laboratory module and its external pallet, the Japanese robotic arm, and the Leonardo Permanent Multipurpose Module...
2022年1月21日 Young Star Jet MHO 2147 Image Credit & License: International Gemini Observatory / NOIRLab / NSF / AURA Acknowledgments: L. Ferrero (Universidad Nacional de Córdoba) Explanation: Laser guide stars and adaptive optics sharpened this stunning ground-based image of stellar jets from the Gemini South Observatory, Chilean Andes, planet Earth. Thes...
Retired U.S. Air Force Brig. Gen. Charles McGee, left, spoke with NASA astronaut Alvin Drew during a Black History Month program titled “Trailblazers, The Story of a Tuskegee Airman,” Wednesday, Feb. 5, 2020, at NASA Headquarters in Washington, D.C. McGee, a pilot with the Tuskegee Airmen during World War II, was a career officer in the Air Force also servin...
2022年1月20日 NGC 7822 in Cepheus Image Credit & Copyright: Mark Carter Explanation: Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and dark sh...
2022年1月19日 M31: The Andromeda Galaxy Image Credit: Subaru (NAOJ), Hubble (NASA/ESA), Mayall (NSF); Processing & Copyright: R. Gendler & R. Croman Explanation: The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy. Even at some two and a half million light-years distant, this immense spiral galaxy — spann...
This image shows the Highfield drill hole, on Vera Rubin Ridge in Gale crater on Mars, made by NASA’s Curiosity rover. Just recently, scientists announced that an analysis of rock samples collected by the rover were enriched in carbon 12, a type of carbon that on Earth is associated with biological processes. 这张图片显示了由美国宇航局好奇号火星车在火星盖尔陨石坑的维拉鲁宾岭上的海菲尔德钻孔。就在最近，科学...
NASA的好奇号火星车在2021年3月19日日落后拍摄到这些云，这是火星探测器任务的第三千零六十三火星日。该图像由21个单独的图像拼接在一起，并进行颜色校正，以使场景看起来就像人眼看到的一样。 影像来源：NASA/Caltech-JPL/MSSS 在分析了NASA好奇号火星车从火星表面采集的粉状岩石样本后，科学家今天宣布，其中几个样本富含一种碳，这种碳在地球上与生物过程有关。 尽管这一发现很有趣，但它并不一定指向火星上的古代生命，因为科学家们尚未发现确凿的支持证据，证明火星上存在古代或现代生物，例如古代细菌产生的沉积岩层，或复杂有机物的多样性生命形成的分子。 “我们在火星上发现的东西非常有趣，但我们真的需要更多的证据来证明我们已经发现了生命。”保罗·马哈菲说。他曾担任好奇号火星样品分析（SAM）化学实验室的首席...
2022年1月18日 From Orion to the Southern Cross Image Credit & Copyright: Lucy Yunxi Hu Explanation: This is a sky filled with glowing icons. On the far left is the familiar constellation of Orion, divided by its iconic three-aligned belt stars and featuring the famous Orion Nebula, both partly encircled by Barnard’s Loop. Just left of center in the f...
2022年1月17日 Chamaeleon Dark Nebulas Image Credit & Copyright: Jarmo Ruuth, Telescope Live, Heaven’s Mirror Observatory Explanation: Sometimes the dark dust of interstellar space has an angular elegance. Such is the case toward the far-south constellation of Chamaeleon. Normally too faint to see, dark dust is best known for blocking visible light fr...
华盛顿贝尔维尤的汤姆·雅各布斯喜欢寻宝。自2010年以来，这位前美国海军军官一直参与在线志愿者项目，让任何感兴趣的人——“公民科学家”——通过NASA的望远镜数据，寻找系外行星的迹象。 现在，雅各布斯帮助发现了一颗距离地球379光年的巨型气态行星，它围绕着一颗与太阳质量相同的恒星运行。这颗木星大小的行星对天文学家来说很特别，因为行星上的一年有261天，比太阳系以外的许多已知巨型气态行星要长。这一结果还表明，这颗行星与它的恒星的距离仅比金星与太阳的距离略远一点。这一发现发表在《天文学杂志》上，并于1月13日在美国天文学会虚拟新闻发布会上发表。 这幅插图描绘了一颗名为TOI-2180 b的类木星系外行星。它是在NASA的凌日系外行星勘测卫星的数据中发现的。 影像来源：NASA/JPL-Caltech/R. Hurt...