Sun May Soon Plunge Into Hot Cloud of Interstellar Gas

Don't worry about stocking up on sunscreen, but our solar system may be headed for a celestial version of global warming. A new analysis suggests that in about 100 years the sun could plunge into a hot cloud of interstellar gas. The change should have no impact on our planet, but it could boost the amount of deadly radiation in space, making missions more challenging for future astronauts.
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