3 ms·
Yeah but the real problem is spotting it in time. The sky is really big.
by zaphar 17y ago
Yeah but the real problem is spotting it in time. The sky is really big.
- stcredzero 17y agoIf the projectiles are relativistic, then warning could only be a few days or even a few hours ahead of time. Even relativistic impactors are unnecessary. Low albedo impactors coming in from angles far off the ecliptic would be exceedingly hard to spot.