Well, just like people don't live forever, our Sun is destined to change drastically in about four billion years or so. The Sun is now converting hydrogen gas into helium gas through nuclear fusion processes caused by intense heat and pressure. When most of the hydrogen gas is gone (already converted to helium) the Sun will undergo a massive growth into a huge ball which will envelop (swallow) all of the nearby planets (including Earth).
This will happen way into the future and need not concern you now. No one that you know or are related to will be alive then. The change will be fortold by huge increases in the Earth's temperature as the Sun grows bigger and bigger. So, all life on Earth will be dead from the drought and intense heat. There is nothing that can be done about it when it begins.
Some forecast a huge collision with a massive asteroid and the Earth well before the Sun begins its death dance. That is also a possibility, and given the size of some asteroids, there is not much that could alter that event. Nuclear warheads launched from Earth, for example, might be similar to pin pricks in the hide of an elephant.
2007-04-15 01:20:52
·
answer #1
·
answered by zahbudar 6
·
0⤊
0⤋
A big crunch is something that will never happen.
The universe will someday go out of existence but it won;t be like that.
Any activity in the universe is time coordinated and a return through billions of years could not be.
Galaxies are an end stage in the evolution of a universe.
The farthest galaxies they observe do not exist now.
The expansion of the universe has stopped.
The red shift is due to neutron star activity at the galactic centers.
The universe is a finite entity so it cannot be in a state of accelerated expansion
2007-04-15 02:59:29
·
answer #2
·
answered by Billy Butthead 7
·
0⤊
0⤋
The big crunch would happen if the universe is closed, that is, if the collective gravity of all the stars and galaxies and everything else is enough to eventually slow down the universe expansion to a point where said expansion will reverse and the universe start imploding.
Current measurement seem to indicate otherwise: the rate of expansion is increasing, that is why the presence of so called "dark energy" is now offered as an explanation. This, on the other hand, may lead to a big rip, where the increasing influence of that dark energy will be enough to even prevent molecules from forming, as atoms would be ripped apart -- perhaps even quarks would be ripped apart, and protons and neutrons would be a thing of the past.
Now, that big rip is real scary stuff...
2007-04-15 02:25:51
·
answer #3
·
answered by Vincent G 7
·
0⤊
0⤋
There are 3 theories genuinely those all remember on how a lot mass there is contained in the universe and what's the gravitonal stress of the universe. First concept is that mass will be more effective than gravity and the universe will keep on increasing. the 2d concept is that gravity and the mass will attain an equilibrium and stay the dimensions it really is. the most suitable concept is that gravity will be more effective than the mass and the universe will decrease decrease back to what it replaced into earlier than the massive bang. gazing red shift and blue shift exhibits the universe is increasing yet we may be able to no longer understand for positive because the ought to easily be our galaxy increasing. also we do not the understand very last effect because we received't calculate a project said as darkish count number which elements to the mass. desire this helps.
2016-12-04 01:39:37
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
Scientists proved back in the late 90's that the big crunch will never happen. Instead, the universe will keep on growing forever until the universe becomes a huge void with nothing, not even a single atom, to fill the void.
Just think of the void in Bush's head but on a much bigger scale.:-)
2007-04-15 02:55:34
·
answer #5
·
answered by Whatever 7
·
0⤊
0⤋
It's not explode. It's deflate. The theory is that since space started with a BANG, it'll end with everything rushing toward each other and crushing together. Thought what is there to exist if there is no space is really weird.
2007-04-15 01:30:34
·
answer #6
·
answered by Tsuki 2
·
0⤊
0⤋
All measurements show that the universe is expanding at an increasing rate. Everything will get farther apart and in many billion years just go dark.
2007-04-15 02:19:56
·
answer #7
·
answered by Gene 7
·
0⤊
0⤋
only if there's enough gravity in the universe.
2007-04-15 03:33:54
·
answer #8
·
answered by neutron 3
·
0⤊
0⤋
SURE DO...ONLY TIME WILL TELL!
2007-04-15 01:12:04
·
answer #9
·
answered by chicago girl 1
·
0⤊
0⤋