When will the sun go nova?

Question

Life span of the earth's sun.

Answer 1

The sun is approximately 4.6 billion years old and halfway through its "main-sequence evolution", at that point it will enter its "red giant" phase. Eventually it will turn into a "white dwarf" star. It will not go into supernova phase as it does not have enough mass. After its approx 10 billion years (total), although it will not explode, it will expand enough to cause everything on earth to die. After a time a a red giant it will cool down ("over eons") and shrink to approx the size of the earth.

Therefore to answer the question, it will NEVER go nova. It's life span however will be for many billion more years. Probably close to 8 or so I would think, but maybe it would make 15 total, giving it 10 billion more years. That is to say, it will still be burning in white dwarf phase just not as brightly. Life span=~15 billion years.

Answer 2

The Sun Isn't large enough to go supernova instead, when It reaches the end of It's life It will expand Into a red giant and completely engulf the planets, Mercury, Venus and the Earth.

Answer 3

Estimates from our knowledge of main sequence stars like our Sun are that the Sun is in the middle of its life cycle as a main sequence star and has 3-4 billion years left until it becomes a red giant.

Answer 4

The sun will not go supernova, it is too small only stars above 3 stellar masses eventually may go supernova. This is because stars above 3 solar masses have enough gravitational potential energy to produce massive pressures, if the pressure is above the Fermi pressure limit protons will combine with electrons to produce neutrons, this happens very quickly and produces a very fast collaple, this is brought to a halt very rapidly when the neutrons themselves are as closesly packed as possible, this causes the star to explode e,g go supernova, this will not happen with our sun because the gravitational energy is not great enough to be greater than the Fermi pressure e.g electrons will not combine with protons. our sun is likely to end its life as a white dwarf slowly getting dimmer and smaller. The sun is expected to continue in the main sequence for 4.5 billion-5 billion years. then it will become a red-dwarf the white dwarf.

Answer 5

we're at 6.4 billion years the is expected to exist 14 billion years theoretically stars less than140,000 miles don,t go nova the simply dissipate the sun will most likely dissipate when it,s fussional outer layer weakened by motion leaving it,s fission core to be a small 2000 mile island with gaseous states around it

Answer 6

12:35 PM July 3, 2006

Answer 7

In about 4.5 billion years, although changes in the Sun will start to seriously affect us within 400 million years.

Answer 8

It won't. The sun is too small to ever go supernova. There just isn't enough mass in our sun to cause it to explode and collapse to form a neutron star or black hole.

Answer 9

Are you bothered about its going nova or about gaining your salvation before it does. Come to Islam now.

Answer 10

jono was right it much to small to ever go super nova and collapse on it own gravity to form a black hole