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Interstellar Object 3I/ATLAS Changed Color Again, And Shows Signs Of Non-Gravitational Acceleration

Behind the Sun, the comet appears to show signs of acceleration beyond what is expected by gravity. And for reasons not yet ...
EurekAlert!

New method of measuring gravity with 3D velocities of wide binary stars is developed and confirms modified gravity at low acceleration

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 nanometer ...

3I/ATLAS Gets Sudden ‘Nongravitational’ Acceleration’—Harvard Astronomer

A Harvard University professor has said that 3I/ATLAS experienced a sudden "nongravitational" acceleration while passing ...