Could Intelligent Visitors Reach Earth? An Engineer's Assessment of Interstellar Travel Feasibility

To the point

Interstellar travel to Earth is likely impossible due to the enormous distances and a tangle of energy, fuel, propulsion, and shielding constraints, though unknown technologies could someday change that, says Kai James of Georgia Tech.

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Could aliens ever visit Earth?

Hot on the heels of the Pentagons latest UAP releases, a Georgia Tech aerospace engineer breaks down what interstellar travel would take and why the odds are stacked against it.