2025年5月11日
The Surface of Venus from Venera 14
Image Credit: Soviet Planetary Exploration Program, Venera 14;
Processing & Copyright: Donald Mitchell & Michael Carroll (used with permission)
Explanation: If you could stand on Venus — what would you see? Pictured is the view from Venera 14, a robotic Soviet lander which parachuted and air-braked down through the thick Venusian atmosphere in March of 1982. The desolate landscape it saw included flat rocks, vast empty terrain, and a featureless sky above Phoebe Regio near Venus’ equator. On the lower left is the spacecraft’s penetrometer used to make scientific measurements, while the light piece on the right is part of an ejected lens-cap. Enduring temperatures near 450 degrees Celsius and pressures 75 times that on Earth, the hardened Venera spacecraft lasted only about an hour. Although data from Venera 14 was beamed across the inner Solar System over 40 years ago, digital processing and merging of Venera’s unusual images continues even today. Recent analyses of infrared measurements taken by ESA‘s orbiting Venus Express spacecraft indicate that active volcanoes may currently exist on Venus.
Jigsaw Fun: Astronomy Puzzle of the Day
Tomorrow’s picture: Milky Way side view
金星14号拍摄的金星表面
影像提供: Soviet Planetary Exploration Program, Venera 14;
影像处理与版权: Donald Mitchell & Michael Carroll (used with permission)
说明: 如果站在金星的表面上，会看到什么？在1982年3月，使用降落伞在金星厚重大气里，进行空气刹车成功着陆的无人前苏联着落器金星14号，当年回传的这幅影像可作参考。在这片荒芜的原野里，它见到扁平的岩块、大片空旷的原野、以及金星赤道 福柏区上空单调毫无特色的天空。在影像的左下角，可见到用来进行科学量测之用的穿透器，其右侧的的淡色物体则是抛弃的部分镜头遮罩。在接近摄氏450度高温和75倍地球气压的环境中，这艘经过硬化处理的金星探测器，只撑了大约1小时。虽然在将近40年前，金星14号的数据就已经回传，但像今天的这种金星号影像之数位处理及影像拼接工作，至今仍持续在进行。近来分析欧洲航天局 金星快车号航天器的红外波段量测数据，显示金星目前或许仍然有活跃的火山。
拼图乐趣: 每日天文学谜题
明日的图片: Milky Way side view
