Seveneves

by Neal Stephenson

In a sword-fighting drill, where one participant is going to mount an attack and the other is to respond in some way, the attacker is known as the agent and the respondent is known as the patient. The agent acts. The patient is passive. In this case an unknown Agent acted upon the moon.

Arjuna asteroid. Because of their near-Earth orbits, Arjunas had a high probability of entering the Earth’s atmosphere and slamming into inhabited places.

But Henry wasn’t a parent, and he didn’t understand that when you were, almost nothing was more satisfying than seeing your kid sleep. So, feeling as content as it was possible to be under the

“If the huge thing in the middle is the Earth, we call it a geocentric orbit. If it’s the sun, it’s a heliocentric orbit.

Pyrrhic

heterozygosity.