保护地球，探索宇宙，发现文明
2020年9月5日 A Falcon 9 Moon Image Credit & Copyright: Katie Darby Explanation: Illuminating planet Earth’s night, full moons can have many names. This year the last full moon of northern hemisphere summer was on September 2, known to some as the Full Corn Moon. A few days earlier on August 30 this almost full moon rose just before sunset though, shi...
The first solid rocket booster test for Space Launch System (SLS) missions beyond Artemis III is seen here during a two-minute hot fire test, Wednesday, September 2, 2020, at the T-97 Northrop Grumman test facility in Promontory, Utah. The flight support booster is structurally identical to each of the five-segment solid rocket boosters on the SLS rocket and...
2020年9月4日 The Wizard Nebula Image Credit & Copyright: Andrew Klinger Explanation: Open star cluster NGC 7380 is still embedded in its natal cloud of interstellar gas and dust popularly known as the Wizard Nebula. Seen on the left, with foreground and background stars along the plane of our Milky Way galaxy it lies some 8,000 light-years distant, toward ...
NASA’s Mars Pathfinder mission landed on the Red Planet on July 4, 1997. It’s tiny rover, named Sojourner after abolitionist Sojourner Truth, spent 83 days of a planned seven-day mission exploring the Martian terrain, acquiring images, and taking chemical, atmospheric and other measurements. When the Mars Pathfinder spacecraft approached its dest...
2020年9月3日 A Halo for Andromeda Digital Illustration Credit: NASA, ESA, J. DePasquale and E. Wheatley (STScI) and Z. Levay Explanation: M31, the Andromeda Galaxy, is the closest large spiral galaxy to our Milky Way. Some 2.5 million light-years distant it shines in Earth’s night sky as a small, faint, elongated cloud just visible to the unaided eye. Inv...
九月会发生什么?月亮与火星和金星，还有一颗失去行星的恒星。 Credit：NASA JPL 翻译：林子杰 9月6日，黎明前的天空中，你会发现月亮紧挨着火星。到了8月9日，他们将更加接近。但这仍然是本月的一大奇观。如果早起，可以出门看看，它们只会相隔几度。如果你用双筒望远镜看，它们会出现在同一个视野中。 Credit：NASA JPL 9月13日和14日，黎明前向东看，可以看到纤细的新月掠过灿烂的金星。在13日，你会发现月亮悬挂在金星上方，约有20％的表面被照亮。到第二天早上，月亮已经移到金星的左边，只有大约10%的阳光照射面可见。 Credit：NASA JPL 九月向南看，对于我们这些住在城市附近的人来说，只有一颗星星比较亮，那颗星叫做北落师门，它有一个非常有趣的故事。这颗恒星距离我们大约25光年，意味着它离...
Skylab 4 Commander Gerald P. Carr is fully suited as he prepares to enter spacecraft 118 (the Skylab 4 vehicle) at the start of a high altitude chamber test at the Kennedy Space Center in this image from Aug. 6, 1973. Also participating in the test were scientist-astronaut Edward G. Gibson, science pilot, and astronaut William R. Pogue, pilot. The Skylab 4 s...
2020年9月2日 Jupiter and the Moons Image Credit & Copyright: Robert Fedez Explanation: How many moons do you see? Many people would say one, referring to the Earth’s Moon, prominent on the lower left. But take a closer look at the object on the upper right. That seeming-star is actually the planet Jupiter, and your closer look might reveal that it is...
2020年9月1日 Salt Water Remnants on Ceres Video Credit: Dawn Mission, NASA, JPL-Caltech, UCLA, MPS/DLR/IDA Explanation: Does Ceres have underground pockets of water? Ceres, the largest asteroid in the asteroid belt, was thought to be composed of rock and ice. At the same time, Ceres was known to have unusual bright spots on its surface. These bright spots were ...
As the International Space Station orbited more than 200 miles above our home planet, the crew caught this glimpse of the sunrise casting long shadows over a cloudy Philippine Sea as the station orbited off the coast of the Philippines northeast of Manila. Image Credit: NASA 当国际空间站在距地球200多英里的上空飞行时，机组人员看到了日出在多云的菲律宾海面上投下长长的阴影，此时国际空间站正在菲律宾马尼拉东北的海岸上空飞行。 图片来源:美国国...