Q:

How old is the moon?

A:

Quick Answer

The scientific consensus is that the Earth's moon formed four and half billion years ago. About 100 million years after the formation of the solar system, another small planet is likely to have collided with the Earth, resulting in the formation of the Moon.

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How old is the moon?
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Full Answer

The solar system was formed when a giant cloud of dust and gas condensed to create the Sun. The planets were formed from leftover material that began to orbit the sun. Shortly after the formation of the solar system, a collision between Earth and a planet approximately the size of Mars created the Moon, which remained in Earth's orbit as its only satellite and which affects several natural processes including the Earth's tidal pattern.

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Related Questions

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    Why does the moon appear bright?

    A:

    The moon appears bright because the side visible on Earth reflects the light from the sun. As the moon and the Earth move around their respective orbits, different portions of the moon are visible to people on Earth, depending on the angle at which the light hits the moon and reflects back to Earth. The moon reflects back about 12 percent of the light from the sun that hits it.

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  • Q:

    What is the size of the moon?

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    The moon has a diameter of 3474.8 kilometers. The moon is 27 percent the size of Earth but has only 1.2 percent of the Earth's mass.

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    Why is the moon important to the earth?

    A:

    The gravitational pull of the moon ensures that the earth remains in a constant position on its axis, despite the way it is moving around the axis. Without the moon, the earth would not be able to continuously rotate and it would be uninhabitable.

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    What you need to survive on the moon?

    A:

    The basic things people need for long-term survival on the moon include breathable air, water, food, power and pressurized shelter. Ideally, people should produce these resources on the moon because delivery costs to the moon are extremely expensive.

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