How long will the sun shine more in future?

five billion years
Fortunately, the Sun’s supply of hydrogen is so great that it will continue to shine for another five billion years. However, the intensity of the solar radiation will increase in the future and this will be fatal for life on Earth.

What will happen if the sun would no longer shine on Earth?

Fortunately, Earth retains heat fairly well, so humans wouldn’t freeze instantly. Life would get much more difficult immediately, though. Without the Sun’s rays, all photosynthesis on Earth would stop. All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too.

What will happen to the sun in the future?

After fusing helium in its core to carbon, the Sun will begin to collapse again, evolving into a compact white dwarf star after ejecting its outer atmosphere as a planetary nebula. The predicted final mass is 54.1\% of the present value, most likely consisting primarily of carbon and oxygen.

What will happen to the size of our sun as it gets older?

Yellow dwarf stars live for about 10 billion years, and at 4.5 billion years old, our middle-age sun is about halfway through its lifetime. Once its hydrogen supply is depleted, the sun will start consuming its heavier elements. Then, it will shrink down to a tiny, extremely dense white dwarf star, about Earth-size.

Will the Sun ever burnout?

The Sun is about 4.6 billion years old – gauged on the age of other objects in the Solar System that formed around the same time. Based on observations of other stars, astronomers predict it will reach the end of its life in about another 10 billion years.

How long will Earth’s sun last?

So our Sun is about halfway through its life. But don’t worry. It still has about 5,000,000,000—five billion—years to go. When those five billion years are up, the Sun will become a red giant.

How long would we live without the sun?

A relatively simple calculation would show that the Earth’s surface temperature would drop by a factor of two about every two months if the Sun were shut off. The current mean temperature of the Earth’s surface is about 300 Kelvin (K). This means in two months the temperature would drop to 150K, and 75K in four months.

Will the sun ever burnout?

What happens to Earth when sun dies?

After the Sun exhausts the hydrogen in its core, it will balloon into a red giant, consuming Venus and Mercury. Earth will become a scorched, lifeless rock — stripped of its atmosphere, its oceans boiled off. While the Sun won’t become a red giant for another 5 billion years, a lot can happen in that time.

How long will the Earth remain habitable?

The authors of this study estimate that the total habitable lifetime of Earth – before it loses its surface water – is around 7.2 billion years, but they also calculate that an oxygen-rich atmosphere may only be present for around 20\%–30\% of that time.