Earth depends on both the Sun and the moon for life as humans know it to exist. The Sun is the ultimate source of energy for the planet, and the moon provides a slight break against the Earth's rotation via tidal forces. The Sun also affects tides.Know More
The Sun provides heat and light to Earth. The heating of Earth's surface produces wind and warms the soil and oceans. Warm air and cooler air intermingle and create rainstorms and other precipitation, and the light gives plants the energy they need to conduct photosynthesis and play a vital role in the food web. Because of the Sun's gravitational pull on Earth, it produces tides, but not as intensely as the moon does.
The moon's gravity and the Sun's gravity align in the new and full moon phases, creating larger tides that slow Earth's rotation slightly. The tides carry water around the oceans and fuel currents that transfer heat from the equator toward the poles. The gravity of the moon is also thought to keep the Earth from tilting too far and therefore making its climate and seasons more stable. If the axis of Earth were straighter, the seasons would be less noticeable. If it were tilted more, the seasons would be more intense.Learn more about Our Moon
The Moon is about 25 percent of Earth's diameter and 1/50 the volume. The Earth's diameter is about 12,742 kilometers, while the Moon is about 3,474 kilometers.Full Answer >
The moon is in fact gradually drifting away from the earth. Each year, the moon spins almost 4 centimeters farther from the earth, which makes the earth's day just a bit longer. While this 1.48-inch movement will eventually add up to a big change, it will take billions of years to make a significant difference to life on earth.Full Answer >
Terraforming the moon is a complicated project that entails providing the moon with a stable atmosphere, adding water to the atmosphere and ensuring the atmosphere is appropriate for humans. While some scientists doubt its feasibility, most agree that it is quite possible in principle.Full Answer >
The moon travels in an elliptical orbit, and at perigee, the closest it gets to Earth, it stands about 225,623 miles, or 363,104 kilometers away.Full Answer >