When Norwegian Kolbjørn Adolfsen gave the nodto send a Black Brant rocket from the Andøya Rocket Range off the northwest coast of Norway to study the aurora borealis, he wasn’t concerned at all.

Sure the Brant is a large, four-stage rocket that would fly to 930 miles above the earth near Russia, but he’d contacted the proper Kremlin authorities and hadn’t given the flight a second thought.

What Adolfsen didn’t know when he left the rocket base shortly after the missile was launched, is that the Brant’s radar signature looks just like a U.S. sub-launched Trident missile.

Oops.