Christopher Impey

“If Planet Nine exists, it will almost certainly be found in that survey data within a few years,”

Christopher Impey · said date not stated · reported 2025-07-24

Christopher Impey stated that survey data from the Vera C. Rubin Observatory should detect Planet Nine within a few years if it exists.

“Ammonite does not align with these six other objects, so weakens the case for Planet Nine, or means it must be very remote and correspondingly difficult to detect,”

Christopher Impey · said date not stated · reported 2025-07-24

Christopher Impey explained how Ammonite's misalignment weakens the case for Planet Nine.