保护地球，探索宇宙，发现文明
Like a time capsule that was sealed for posterity, one of the last unopened Apollo-era lunar samples collected during Apollo 17 has been opened under the careful direction of lunar sample processors and curators in the Astromaterials Research and Exploration Science (ARES) Division at NASA’s Johnson Space Center in Houston. This precious and well-preserved s...
2022年3月24日 Arp 78: Peculiar Galaxy in Aries Image Credit & License: International Gemini Observatory / NOIRLab / NSF / AURA Processing: T.A. Rector (Univ. Alaska Anchorage), J. Miller (Gemini Observatory/NOIRLab), M. Zamani & D. de Martin Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Arie...
The first corned beef sandwich to orbit Earth was smuggled aboard Gemini III on March 23, 1965. As contraband unapproved for flight by NASA, pilot John Young had hidden the sandwich in a pocket of his spacesuit shortly before the launch. Around two hours into the almost five-hour long flight, he offered some to the commander of the mission, Virgil “Gus...
2022年3月23日 The Bubble Nebula from Hubble Image Credit: NASA, ESA, Hubble; Processing & Copyright: Mehmet Hakan Özsaraç Explanation: Massive stars can blow bubbles. The featured image shows perhaps the most famous of all star-bubbles, NGC 7635, also known simply as The Bubble Nebula. Although it looks delicate, the 7-light-year diameter bubble offers evi...
太阳系外的行星或系外行星是什么样的？此图显示了多种可能性。科学家在20世纪90年代发现了第一批系外行星。截至2022年，已确认的系外行星总数刚刚超过5,000 颗。 影像来源：NASA/JPL-Caltech 已确认的系外行星数量刚刚超过5,000颗，这代表着由NASA太空望远镜引领的30年发现之旅。 不久前，我们生活在一个只有少数已知行星的宇宙中，所有行星都围绕太阳运行。但一系列新发现标志着科学的一个高点：现在已确认超过5,000颗行星存在于太阳系之外。 行星里程表于3月21日开启，最新一批65颗系外行星——我们的太阳系家族之外的行星——被添加到NASA系外行星档案中。该档案记录了出现在同行评审的科学论文中的系外行星发现，并已使用多种检测方法或分析技术得到证实。 迄今为止发现的5,000多颗系外行星包括像地球...
Not so long ago, humanity lived in a universe with only a small number of known planets, all of them orbiting our Sun. But a new raft of discoveries marks a scientific high point: More than 5,000 planets are now confirmed to exist beyond our solar system. The planetary odometer turned on March 21, with the latest batch of 65 exoplanets – planets outside our ...
2022年3月22日 A Whale of an Aurora over Swedish Forest Image Credit & Copyright: Göran Strand Explanation: What’s that in the sky? An aurora. A large coronal mass ejection occurred on our Sun earlier this month, throwing a cloud of fast-moving electrons, protons, and ions toward the Earth. Part of this cloud impacted our Earth’s magnetosphere a...
2022年3月17日，即任务的第381个火星日，NASA的毅力号火星探测器回望了它的车轮轨迹。 影像来源：NASA/JPL-Caltech 本月，火星车将开始一系列破纪录的冲刺，前往下一个采样地点，届时将对其自动驾驶能力进行测试。 NASA的毅力号火星车试图在一个月内行驶的距离超过之前任何一辆火星车，而且它将使用人工智能来做到这一点。前方的道路上有沙坑、陨石坑和尖锐岩石的区域，火星车必须自行导航，绕过这些地方。从2022年3月14日开始的3英里（5公里）的旅程结束后，毅力号将抵达杰泽罗陨石坑内一个古老河流的三角洲，那里数十亿年前曾有一个湖泊。 这个三角洲是火星探测器寻找过去微观生命迹象的最佳地点之一。毅力号使用机械臂末端的钻头和腹部的复杂样本采集系统，正在收集返回地球的岩芯，这是火星样本返回活动的第一部分。 “...
This colorful image, taken by the Hubble Space Telescope and published in 2018, celebrated the Earth-orbiting observatory’s 28th anniversary of viewing the heavens, giving us a window seat to the universe’s extraordinary tapestry of stellar birth and destruction. At the center of the photo, a monster young star 200,000 times brighter than our Sun is blasting...
2022年3月21日 The Sky in 2021 Image Credit & Copyright: Cees Bassa (Netherlands Institute for Radio Astronomy) Explanation: What if you could see the entire sky — all at once — for an entire year? That, very nearly, is what is pictured here. Every 15 minutes during 2021, an all-sky camera took an image of the sky over the Netherlands. Central c...