Modern Engineering Marvels on MSN

Alien probe or ancient ice? The enigma of 3I/ATLAS

This is not the first time that a comet is accusing it of being a spy. However, 3I/ATLAS, which was introduced on July 1, ...

Could Earth handle an alien encounter?

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