Astronomers Detect a Backward-Orbiting World Beyond Neptune, Raising New Questions About the Solar System’s Outer Edge
Astronomers using the Rubin Observatory have identified a distant object beyond Neptune that appears to move in a retrograde, or backward, orbit relative to the planets. The finding is drawing attention because such motion can signal a violent origin, gravitational disruption, or even an interstellar capture scenario, though researchers will need more observations before any conclusion is firm.
