标签： Mars

天文·每日一图

 由 

着陆火星：恐怖七分钟

2021年02月15日 Landing on Mars: Seven Minutes of Terror Video Credit: NASA, JPL Explanation: Starting Thursday, there may be an amazing new robotic explorer on Mars. Or there may be a new pile of junk. It all likely depends on things going correctly in the minutes after the Mars 2020 mission arrives at its new home planet and attempts to deploy the Perseverance...

新闻

 由 

洞察号“鼹鼠”热探测器，结束了它的火星之旅

在这张NASA洞察号着陆器位于火星表面的示意图中，可以看到下方的火星地下结构层次，背景中则可以看到可怕的沙尘。 图片来源：巴黎地球物理研究所/尼古拉斯·萨特（Nicolas Sarter） 热探针始终无法获得挖掘所需的摩擦力，而该任务也已获得进一步指示，可以继续进行其他的科学工作了。 由德国航空航天中心（German Aerospace Center，DLR）开发和制造，美国航空航天局（NASA）洞察号（InSight）着陆器所部署在火星上的热探针，已经结束了它的相关任务。自2019年2月28日以来，这一名为“鼹鼠”（mole）的热探测器就一直在尝试深入火星表面之下，希望能测得火星的内部温度，为我们带来火星内部热源的详细信息，解释火星演化和地质改变的原因。但是火星土壤出乎意料的结块趋势，让长钉状的“鼹鼠”失去了...

天文·每日一图

 由 

火星的条纹沙丘

2021年01月06日 Striped Sand Dunes on Mars Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA; Processing: Włodek Głażewski; Text: Alex R. Howe (NASA/USRA, Reader’s History of SciFi Podcast) Explanation: Why are these sand dunes on Mars striped? No one is sure. The featured image shows striped dunes in Kunowsky Crater on Mars, photographed recently with the...

天文·每日一图

 由 

玉龙雪山上空的火星和流星

2020年11月21日 Mars and Meteor over Jade Dragon Snow Mountain Image Credit & Copyright: Jeff Dai (TWAN) Explanation: A brilliant yellowish celestial beacon, Mars still dazzles in the night. Peering between clouds the wandering planet was briefly joined by the flash of a meteor in this moonless dark sky on November 18. The single exposure was taken as the E...

天文·每日一图

 由 

火星全图：地面观测版

2020年11月20日 Global Map: Mars at Opposition Image Credit & Copyright: F. Colas / J.L. Dauvergne / G. Dovillaire / T. Legault / G. Blanchard / B. Gaillard / D. Baratoux / A, Klotz / S2P / IMCCE / OMP / Imagine Optic Explanation: This may be the best global Mars map made with a telescope based on planet Earth. The image data were captured by a team of obse...

天文·每日一图

 由 

火星快车拍摄的火卫一

2020年11月8日 Martian Moon Phobos from Mars Express Image Credit: G. Neukum (FU Berlin) et al., Mars Express, DLR, ESA; Acknowledgement: Peter Masek Explanation: Why is Phobos so dark? Phobos, the largest and innermost of two Martian moons, is the darkest moon in the entire Solar System. Its unusual orbit and color indicate that it may be a captured asteroid co...

天文·每日一图

 由 

火卫一，火卫二与火星

2020年10月30日 Fear and Dread: The Moons of Mars Composite Image Credit & Copyright: Dennis Simmons Explanation: On Halloween fear and dread will stalk your night skies, also known as Phobos and Deimos the moons of Mars. The 2020 opposition of Mars was on October 13, so the Red Planet will still rise shortly before sunset. Near Halloween’s Full Moon ...

NASA·每日一图

 由 

火星上的古代冰崖

Scientists have come to realize that, just below the surface, about one third of Mars is covered in ice. We study this ice to learn about Mars’ ancient climate and astronauts’ future water supplies. Sometimes we see the buried ice because cliffs form like the one in this image. On the brownish, dusty cliff wall, the faint light-blue-colored ice s...