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body collided with Earth approximately 4.5 billion years ago, and the resulting debris from both Earth and the impactor accumu-lated to form our natural satellite. The newly formed Moon was in a molten state. Within about 100 million years, most of the global “magma ocean” had crystallized, with less-dense rocks
- NASA Jet Propulsion Laboratory (JPL)
Within about 100 million years, most of the global “magma...
- Moon ABCs Fact Sheet
The Moon ABCs Fact Sheet includes comparisons of Earth and...
- NASA Jet Propulsion Laboratory (JPL)
Within about 100 million years, most of the global “magma ocean” had crystallized, with less-dense rocks floating upward and eventually forming the lunar crust. Since the ancient time of volcanism, the arid, lifeless Moon has remained nearly unchanged.
16 maj 2023 · The Moon ABCs Fact Sheet includes comparisons of Earth and the moon. It also includes “Brain Busters,” which are questions about Earth and the moon that stimulate thinking. Moon ABCs Fact Sheet [62KB PDF file]
on the Moon? Why or why not? Could you breathe the lunar atmosphere? How long does daylight last on the Moon? Why are the temperatures of Earth and the Moon so different? Compare maps of Earth and the Moon. Is there any evidence that plate tectonics operated on the Moon?
Key facts about the Moon appear on the ÒMoon ABCsÓ and ÒRock ABCsÓ pages. These pages were named to emphasize the basic nature of the information. The ÒProgress in Lunar Science ChartÓ summa-rizes our knowledge about the Moon from 1959 to 1997. The activities are divided into three units: Pre-Apollo, Learning from Apollo, and the Future ...
Earth's Moon records evidence of our solar system's history in the form of impact craters, cooled lava landforms, ancient ice deposits, and more.
The Moon is ~250,000 miles from Earth - A trip takes humans 2 - 3 days. If the Earth were the size of a basketball, the Moon would be the size of a tennis ball and it would be about 23.5 feet away.
