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Because the hydrogen in the suns core will burn up, and the sun will have to rely on other sources of energy.

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How does the sun change its position during the day?

It doesn't ! The sun stays where it is - it's the rotation of the Earth that makes the sun appear to move.


Why does the illuminated part of the Moon appear to change shape to us on Earth?

The shape of the moon changes to us on Earth because of the position that the Sun, Moon, and Earth are in at the time. If the Sun, Moon, and Earth are at a 180o angle withe the moon and sun on the out side then we will have a new moon because the earth will be blocking all the light away from the moon.


Why do constellations change with seasons?

Constellations appear to change with the seasons because Earth's orbit around the sun causes us to see different parts of the night sky during different times of the year. As Earth moves, the position of the stars relative to the sun changes, causing different constellations to become visible at different times.


Is the sun always the same size and colour?

The sun's size remains relatively constant, but its color can appear to change due to variations in Earth's atmosphere and the angle of sunlight. The sun is actually white, but its light is composed of various colors which appear as yellow or orange when viewed from Earth.


Why do planets appear to move through the background of stars?

Planets appear to move through the background of stars because they orbit the Sun at different speeds. As the Earth and other planets move in their orbits, their positions relative to the background stars change, causing them to appear to move across the sky. This is known as planetary motion.

Related Questions

The constellations you see from earth appear to change as the?

Earth revolves around the sun. That is why the constellations we see from Earth appear to change.


Why the moon stars and sun appear to change positions in the sky?

The sun and stars change positions because Earth moves


Why does the sun appear to be the brightest star to us on earth?

It is the closet star to us.


Why does the moon appear to change as it revolves around the earth?

it has to do with the sun and the position of the moon , sun and earth


How does the sun change its position during the day?

It doesn't ! The sun stays where it is - it's the rotation of the Earth that makes the sun appear to move.


Why does the sun appear to be the brightest star in your galaxy?

Because it is the closest to us


How does the position of the sun appear to change during each day?

the moon goes round the sun and then it macks the su move


Why does the sun appear different to us than other stars?

because it is closer!


What if our sun was blue instead of yellow?

If our sun were blue instead of yellow, it would emit a different color of light and appear bluer in the sky. This change in color would affect the way we perceive the world around us, as colors would appear differently under a blue sun. Additionally, the temperature and energy output of the sun would also be different, potentially impacting the climate and conditions on Earth.


Why does the illuminated part of the Moon appear to change shape to us on Earth?

The shape of the moon changes to us on Earth because of the position that the Sun, Moon, and Earth are in at the time. If the Sun, Moon, and Earth are at a 180o angle withe the moon and sun on the out side then we will have a new moon because the earth will be blocking all the light away from the moon.


Why can the Moon appear as large as the Sun even though you know the Moon is much smaller than the Sun?

The Moon is much closer to Earth than the Sun is, therefore making the moon appear to be as large or larger than the sun when viewed from Earth.


Why do constellations change with seasons?

Constellations appear to change with the seasons because Earth's orbit around the sun causes us to see different parts of the night sky during different times of the year. As Earth moves, the position of the stars relative to the sun changes, causing different constellations to become visible at different times.