浮夸版的月亮

2024年7月24日

Exaggerated Moon
Credit: Data: NASA, Lunar Orbiter Laser Altimeter; Image & Processing: Ildar Ibatullin

Explanation: Our Moon doesn’t really have craters this big. Earth’s Moon, Luna, also doesn’t naturally show this spikey texture, and its colors are more subtle. But this digital creation is based on reality. The featured image is a digital composite of a good Moon image and surface height data taken from NASA’s Lunar Orbiter Laser Altimeter (LOLA) mission — and then exaggerated for educational understanding. The digital enhancements, for example, accentuate lunar highlands and show more clearly craters that illustrate the tremendous bombardment our Moon has been through during its 4.6-billion-year history. The dark areas, called maria, have fewer craters and were once seas of molten lava. Additionally, the image colors, although based on the moon’s real composition, are changed and exaggerated. Here, a blue hue indicates a region that is iron rich, while orange indicates a slight excess of aluminum. Although the Moon has shown the same side to the Earth for billions of years, modern technology is allowing humanity to learn much more about it — and how it affects the Earth.

Tomorrow’s picture: open space

浮夸版的月亮
影像及数据: 数据提供: NASA, Lunar Orbiter Laser Altimeter; 影像处理: Ildar Ibatullin

说明: 月亮其实并没有这么大的撞击坑。此外，自然状态下的月亮，也没有刺猬般的纹理，而其色泽也较平淡。然而，这幅数位组合影像却也是基于真实数据。这幅主题影像，数位组合了优质的月亮照片及美国国家航空航天局的月球轨道飞行器激光测高仪（LOLA）之月表高度数据，然后经过夸大以为教育和理解提供助力。例如：数位夸大了月球的高地，以更清楚的呈现撞击坑，而这些撞击坑记录了月球在它46亿年的历史中，所经历过的重轰炸期。其中，名为月海、撞击坑较少的黝黑区域，曾经是熔岩海之所在。这幅影像的色彩虽然基于真实的月球化学组成，但也经过改色和夸大。在此影像里，蓝色区为富含铁的区域，而橙色区则是铝含量略高的区块。尽管数十亿年来，月球一直以同一面朝着地球，然而借助于现代技术，让人类得以学到非常多关于月球的知识，以及它如何影响地球。 （Lunar Orbiter Laser Altimeter; LOLA 月球轨道飞行器激光测高仪）

明日的图片: open space