The sun?????!!!!!!!! shrinking?

Question

okay apparantly its shrinking at a rate of 1 metre an hour

sooooooo were all gonna diee!!!!

naw im totally joking

but its still shrinking at a rate of 1 metre an hour

scary stuff.

Answer 1

Yes the sun is still shrinking from its formation. But that will stop when it reaches middle age. After that, it will begin to expand. But don't worry, we'll be gone by then. By the way the sun is also losing mass by mass converting to energy every second. But again, don't worry, it has plenty to go around. (No pun intended.)

Answer 2

No it's not, it's growing. In fact, in a few thousand years, it'll swallow up some of the inner planets, maybe even all of the inner planets.

Answer 3

Sun is not shrinking. It's getting larger and larger, hotter and hotter, until, one day, it explodes. (At least that's what the scientists believe)

Answer 4

The sun is getting bigger and hotter, NOT shrinking.

But that has to do with the nuclear reactions and it is a slow and gradual process.

In the core of the sun, it makes energy by hydrogen fusion.

4H atoms make 1 He which leads to less particles in the core, so the pressure drops. The reason the sun doesn't just collapse under gravity is that the gas has pressure which counteracts gravity. If the pressure drops, the core contracts.

This converts potential energy to kinetic energy, so

the core gets hotter and denser. The rate of nuclear fusion is temperature dependent. A hot core means that more H atoms are fused to make He every second - to the sun gets hotter and brighter and bigger.

As core shrinks, outer layers expand.

Hotter core heats envelope, increasing its pressure and causing it to expand. Radius increases

The sun has increased in temperature and radius by only 6% in the last 5 billion years, so it's not gonna sudden envelop up either

Answer 5

No way. The Sun actually increases it's size and brightness. 1.1 billion years from now, the sun's brightness will increase by 10%. It will increase it's size too, but I'm not sure about the exact amount. 10% could be a small amount for you, but it's strong enough to evaporate all waters on Earth.I imagined that if that would have happened, wouldn't it precipitate afterward? Well anyway it's a little irrelevant to your question. Going back, 8 billion years from now, the sun would have become a supernova then into a red giant. Then this is where the sun would decrease it's size by becoming a white dwarf and drift around the universe as a neutron star. But that would be 12 billion years from now, and Earth is already a goner even before the sun becomes a white dwarf. Unless technology is good enough to support humans or the earth. Just sharing :)

Answer 6

Yeah it is...  but nuclear fusion is reacting... if it didnt shrink we would die from it blowing up...

It needs to shrink or else the fusion would make the star explode

Answer 7

oh my,

so how long until its completely gone?

Answer 8

.....isn't that really bad though?  

Answer 9

I'd like to know your source for the shrinking of the sun.

According to scientists, the sun is actually expanding and growing warmer and brighter - within 2 billion years or so it will be warm enough that the water on Earth will have evaporated.

Answer 10

That's a 10 year old myth based on a bad study done a while back. They thought it was, but we would've noticed it by now... don't get me wrong, the sun is huge, just not huge enough for it to have been shrinking 1 meter per hour for the past 4.5 billion years.

Maybe you can submit this to the 2012 website and bring in a new doomsday theory. I'm getting tired of Nibiru and pole shift.

Answer 11

No its not. It was suggested in a study that it shrank at that rate a few decades ago but another study showed it was wrong. If the Sun had been shrinking at that rate we would have noticed.

Answer 12

It's actually not shrinking. It in fact is getting bigger. The Sun "burns" hydrogen fuel as it's means of living as a star and giving life to things on Earth. As it converts an incredible amount of 4 million tons of hydrogen into helium every second it is slowly expanding. This will continue on for the next 5 billion years when the Sun has only helium fuel left to keep shining on. As a result the Sun will increase in luminosity over 1,000 times, and be about 100 times bigger. It will engulf the inner planets as it burns on its hydrogen. Once this is all gone it cannot get any hotter to fuse any elements so it will collapse into a small star known as a white dwarf.  

Answer 13

Impossible.  At that rate it will collapse completely in only 150,000 years.  The sun has been around for 5 billion years, and is supposed to last another 5 billion.