The Ninth Circle
Arthur Vangeest has been hunting a cult known as the Ninth Circle for months and finally located their base of operations, but something goes terribly wrong before he can strike at them. Someone he trusts betrays him and his wife and young daughter are murdered. Now he isn’t sure if there is anything left to live for. But, when he exacts his revenge on the people that hurt him, he finds a new reason to stay alive.
When rookie astronomer Irina Kirilenko discovers a planet-size comet in the Kuiper Belt on a collision course for Mars, she first faces stonewalling from the Minor Planet Center, then coercion and stricture from NASA. They press her to embrace an ingenious reinterpretation of her discovery and ban her from talking about it.