2¹²⁷ nanoseconds would be only 390 billion times longer than the universe has existed so far (13.79 billion years). If you wanted to crack AES-128 with brute force using one-billion-key-per-second cracking computers and could only wait a year, you would need 5.4 sextillion computers. If each of those computers weighed 100 milligrams, in the neighborhood of many current chips, their total mass would be 539 trillion tonnes (5.39 × 10¹⁸ kg, 539 exagrams).
That's only about a hundred thousandth of the mass of the Moon, and there are dozens of asteroids larger than this. Since it's clearly physically possible to disassemble an asteroid, or even the entire Moon, and build computers out of it, AES-128 should not be considered secure against currently known attacks. However, currently, it is not publicly known that the NSA has converted any asteroids into computers, and it seems unlikely to have happened secretly.
