Alien spaceships are in a league of their own, though. Earth does have a force field that could make a spacecraft landing ...

A new anomaly related to the size of particles in the interstellar object 3I/ATLAS has been detected. This was reported in his blog by Harvard University astronomer Avi Loeb.

Harvard's Avi Loeb maintains a 'Rank 4' assessment for interstellar visitor 3I/ATLAS, citing 15 anomalies that defy natural ...