Professor Avi Loeb points to 3I/ATLAS's very high speed of 130,000 mph, as an indication that it might be controlled by aliens? "It is difficult to imagine a natural process that would favor a plunge towards our inner solar system at 60 kilometers per second." "An alternative is that the object is targeting our inner solar system, by some technological design." 7 miles (15 km) in diameter. What do YOU think? First stop > Mars.