Most scientists believe the moon and Earth have been bombarded by meteorites at a constant rate for the past few billion years. New research suggests that – in the past 300 million years – it’s been happening 2 to 3 times more frequently.
Prabhakaran A captured this image on a waxing gibbous moon, on November 16, 2018. He wrote: "Three types of land forms make up the moon's surface: impact craters, maria, highlands. The image above depicts the large crater Plato, whose interior of the crater has smoothed over from old lava flows. Lunar Maria are the large, dark, regions of the moon. They do not contain water, as it was believed in past; they are believed to have been formed from molten rock. A portion of Mare Imbrium is visible at the right bottom. It looks smooth and flat with numerous wrinkle ridges to the periphery. The moon's highlands are old mountainous regions. They are light in contrast to the moon's maria. The lunar surface features many mountains, such as Montes Alpes, which frequently border the maria or seas. Comparing the diameters of the Earth and moon, the lunar mountains are proportionally higher. Mons Pico is an isolated mountain with a height of 2,400 meters. It creates an enormous shadow in this picture which shows its height."
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