标签: Mars

火星上空的火卫一

2023年7月31日 Phobos over Mars Image Credit: ESA, DLR, FU Berlin, Mars Express; Processing & CC BY 2.0 License: Andrea Luck Explanation: Why is Phobos so dark? Phobos, the largest and innermost of the 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 composed of a mixt...

史蒂克妮坑

2023年7月8日 Stickney Crater Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA Explanation: Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall. Asaph Hall discovered both the Red Planet’s moons in 1877. Over 9 kilometers across, Stickney is nearly half ...

观星指南(2023年7月)

七月的天空会发生什么?火星和金星分道扬镳,土星与一颗充满尘埃的年轻恒星一起巡游,这是观测银河系的黄金时段。

MAVEN的火星紫外影像

2023年6月27日 MAVEN’s Ultraviolet Mars Image Credit: MAVEN, Laboratory for Atmospheric and Space Physics, Univ. Colorado, NASA Explanation: These two global views of Mars were captured at ultraviolet wavelengths, beyond the spectrum visible to human eyes. Recorded by the MAVEN spacecraft’s Imaging Ultraviolet Spectrograph instrument in July 2022 (le...

机智号的立体影像

2023年6月24日 3D Ingenuity Image Credit: NASA, JPL-Caltech, MSSS, ASU Explanation: The multicolor, stereo imaging Mastcam-Z on the Perseverance rover zoomed in to capture this 3D close-up (get out your red/blue glasses) of the Mars Ingenuity helicopter on mission sol 45. That’s Earth-date 2021 April 5. Casting a shadow on the Martian surface, Ingenuity is...