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how do they know that? i read it in an article on my home page the other day. how do they know alot of things they tell us are going to happen millions of years from now? or what happened millions of years ago?

2007-01-31 03:38:06 · 5 answers · asked by little S 2 in News & Events Media & Journalism

5 answers

You gotta be kidding right....? Yes the moon can be disintigrated one day by celestial objects smashing into it.
Did you know that the sun "will" die one day?

Life-cycle of the Sun
The Sun is about halfway through its main-sequence evolution, during which nuclear fusion reactions in its core fuse hydrogen into helium. Each second, more than 4 million tonnes of matter are converted into energy within the Sun's core, producing neutrinos and solar radiation. The Sun will spend a total of approximately 10 billion years as a main sequence star.

The Sun does not have enough mass to explode as a supernova. Instead, in 4-5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up. Helium fusion will begin when the core temperature reaches around 100 MK, and will produce carbon and oxygen. While it is likely that the expansion of the outer layers of the Sun will reach the current position of Earth's orbit, recent research suggests that mass lost from the Sun earlier in its red giant phase will cause the Earth's orbit to move further out, preventing it from being engulfed. However, Earth's water will be boiled away and most of its atmosphere will escape into space.

Following the red giant phase, intense thermal pulsations will cause the Sun to throw off its outer layers, forming a planetary nebula. The only object that will remain after the outer layers are ejected is the extremely hot stellar core, which will slowly cool and fade as a white dwarf over many billions of years. This stellar evolution scenario is typical of low- to medium-mass stars

2007-01-31 03:54:34 · answer #1 · answered by theman134 3 · 0 0

Imagination and speculation. This is where most of the "proof" of evolution comes from. I have no problem with teaching evolution as a theory, but it is not proven by any means.
The only way the moon would disintigrate is if there was a failure of gravity, or something catastrophic being done to it. It is not likely to just fly apart for the fun of it.

2007-01-31 04:38:40 · answer #2 · answered by Anonymous · 0 1

OK and Stawberry cheese cake is made to be eaten.

2007-01-31 04:33:29 · answer #3 · answered by Boomrat 6 · 0 1

Well not everything lives forever.
That's just like earth.
It'll soon pass too.

2007-01-31 03:50:54 · answer #4 · answered by Miah 3 · 0 1

Possibly when the last tick has ticked.

2007-01-31 03:42:59 · answer #5 · answered by Anonymous · 0 1

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