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.Know More
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
According to the National Weather Service, seasons are cause by the Earth's axial tilt, which is 23.5 degrees off the vertical. During various points in its orbit, the planet's north pole points toward or away from the sun to an extent. When it points toward the sun, the northern hemisphere receives more direct sunlight, and when it points away, the hemisphere receives less energy from the sun, causing the seasons.Full Answer >
The seasons of Brazil are the reverse of what the seasons are in the Northern Hemisphere, including Europe and the United States. Brazil's summer lasts from December to April. Brazil has a very diverse climate that affects seasonal temperatures, depending on geographic location and features.Full Answer >
Seasons start and finish with the equinoxes and the solstices. For example, summer begins with the summer solstice, which occurs in the northern hemisphere at around June 21. During the summer solstice, the hours of daylight are greater than the hours of darkness.Full Answer >
Temperature changes throughout the year are caused by the tilt of the Earth on its axis and its revolution around the sun that allows sunlight to strike more directly. Depending on which hemisphere is facing the sun at a given time, that hemisphere experiences either summer or winter.Full Answer >