The Moon May Be 40 Million Years Older Than Previously Believed
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About 4.5 billion years ago, a Mars-sized planet smashed into the newly-formed Earth. The collision ejected a large amount of planetary debris into space. Scientists believe that due to the energy from the impact, the debris was initially molten. It solidified over time as the material cooled and eventually became the Moon. However, how quickly that happened is up for debate.
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dogo22liamwang1년 이상Wow
singularity_421년 이상I have seen this before, it's so cool- singularity_421년 이상I LOVE SPACE