Earth's tilted spin axis causes the seasons, according to the National Weather Service. Earth spins on its axis and is tilted to its orbital plane while orbiting around the sun in an ellipse.Continue Reading
The tilt of Earth's axis, which is 23.5 degrees, allows the sun to hit certain parts of Earth more directly. When it is winter for the northern hemisphere, it is summer for the southern hemisphere. At this time of the year, the sun shines more directly on the southern hemisphere, according to NASA. Without the tilt of Earth's axis, the equator and immediate surrounding areas would get the most sun, and the northern and southern hemispheres would be either hot or cold with the same temperature year-round. Earth's distance from the sun does not affect the seasons. Instead, Earth's elliptical orbit means the planet is closer to the sun during the northern hemisphere's winter.
The winter and summer solstices refer to the times of the year when Earth's axis points towards or away from the sun, according to the National Weather Service. Some scientists believe that a large object, called Theia, hit Earth when the planet was still young, causing Earth to tilt and sending dust and rubble into orbit, states NASA.Learn more about Weather Seasons
The seasons are caused by the Earth's tilted axis. The Earth is tilted 23.5 degrees with respect to its orbital plane.Full Answer >
Earth has seasons because the axis on which it rotates is tilted. This causes the northern hemisphere of earth to be closer to the sun during summer and farther away during winter, thus causing temperature changes and seasons. The seasons are reversed in the southern hemisphere.Full Answer >
The Earth's tilt on its axis with respect to its orbital plane is the cause of the different seasons experienced annually. When the Earth is tilted toward the sun, it causes the summer season in that particular hemisphere. Winter is consequently caused by the Earth titling away from the sun.Full Answer >
If the Earth's axis tilted 45 degrees instead of the current 23.5 degrees, the seasons would be far more pronounced than they are, and the poles would be warmer overall. Earth's axis is responsible for the seasons and is at the perfect angle to the sun to support complex life.Full Answer >