It’s not only eccentric Science Fiction authors who dare to speculate on the nature of this 400-meter cigar-shaped interstellar visitor which passed within the orbit of Mercury then grazed Earth, at 15Million miles; before exiting the solar system to destinations unknown…
“The body is now about twice as far from Earth as the sun, but from that distance the Green Bank telescope can still detect transmissions as weak as those produced by a mobile phone. Loeb said that while he did not expect Green Bank to detect an alien transmission, it was worth checking.”
Green Bank telescope
Artist Impression
Actual Spacecraft
Perhaps they were just buzzing us and will now come round to line-up for a strafing run…