What would happen to Earth if the Sun died?

What would happen to Earth if the Sun died?

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.

What would happen to Earth without the Sun?

With no sunlight, photosynthesis would stop, but that would only kill some of the plants—there are some larger trees that can survive for decades without it. Within a few days, however, the temperatures would begin to drop, and any humans left on the planet’s surface would die soon after.

Can humans live without the Sun?

All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too. While some inventive humans might be able to survive on a Sun-less Earth for several days, months, or even years, life without the Sun would eventually prove to be impossible to maintain on Earth.

How long will humans 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.

How will the Sun end its life?

Once our own Sun has consumed all the hydrogen fuel in its core, it too will reach the end of its life. Astronomers estimate this to be a short 7 billion years from now. For a few million years, it will expand into a red giant, puffing away its outer layers.

What will the Sun become when it dies?

The sun will become a planetary nebula after it dies, astronomers predict. A new stellar model showed the sun will produce a luminous planetary nebulae after it dies. The stellar nebulae produced by the sun after it dies will be relatively faint.

How many years until the Sun dies?

The answer, of course, is unknown, but two new studies suggest a collision with Mercury or Mars could doom life long before the Sun swells into a red giant and bakes the planet to a crisp in about 5 billion years.

Will the Sun explode eventually?

The Sun won’t explode. Some stars do explode at the end of their lives, an explosion that outshines all the other stars in their galaxy added together – something we call a “supernova”. That…