Solar system could go haywire before the Sun dies | New Scientist

How will life on Earth end? 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. The studies suggest that the solar system’s planets will continue to orbit the Sun stably for at least 40 million years. But after that, they show there is a

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太陽系の安定性について。4000万年は安定してそうだが、それを超えると何が起きても、例えば水星の離心率が大きくなって金星と衝突することもありえる。