From the Publisher:
Mercury is the new novel in Ben Bova's acclaimed Grand Tour of the Solar System, the enthralling story of humankind's first steps to explore Earth's closet neighbours in the universe.

The closest planet to the Sun, Mercury is an airless, heat-scorched world where temperatures rise to four times higher than the boiling point of water by day and drop to one hundred and thirty-five degrees below freezing at night.

But this vision of hell is also a planet with unlimited solar power - worth a fortune to the space tycoon Saito Yamagata if he can find a way to harness it. He has hired the enigmatic Dante Alexios to establish a research station on the surface of the planet and find a way to turn that solar energy into portable power satellites.

Yamagata is secretly also preparing the way to a very different dream: he wants to travel to the stars themselves. And Alexios has his own obsession, a plot to lure an old enemy to this hellhole of a world and take his revenge for one of the worst disasters in human history.