Assuming a 500 gram wrench, and if I did the math right, this would yield about 4 × 10^44 ergs of energy on impact. Or about 6 followed by 30 zeros times the energy of the hiroshima bomb.

Nice little moment of genuine, believable humanity in the midst of sci-fi stuff. Nicely done.

What THX said! I’m too lazy to think of a different way to say what he already posted.

Like being hit by a really big asteroid. Ouch!