https://www.live-feeds.com/feed/our-solar-system-is-terminally-unstable-and-will-be-completely-destroyed-study-findsContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/our-solar-system-is-terminally-unstable-and-will-be-completely-destroyed-study-findshttps://www.live-feeds.com/feed/our-solar-system-is-terminally-unstable-and-will-be-completely-destroyed-study-finds#u105553Tue, 06 Oct 2026 06:52:37 +0000The outer solar system faces terminal instability and total destruction much sooner than previously estimated. A study published in The Astrophysical Journal Letters reveals the estimated lifespan of the outer solar system has dropped from 100 billion years to just a few billion years. This instability occurs during the death of the Sun, which will eventually transition into a white dwarf. While the outer planets face eventual ejection into the universe, the inner planets Mercury, Venus, and Earth will be engulfed first during the Sun's red giant phase.Why it mattersThe lifespan of a sola