propulsion systems

"A volume explaining inventor Geoffrey Landis's plan to develop space rovers that use the power of wind to explore the surface of Venus"--.

"A volume explaining engineer Bruce Wiegmann's plan to create a space craft that will harness the power of solar wind to propel itself towards the edge of the solar system"--.

"A volume explaining inventor Philip Lubin's plan to create space probes that use the power of laser beams to push the probe out of the solar system at around one-third the speed of light"--.

"Examine the life of Yvonne Brill and her contributions to make space travel happen. Sidebars encourage the reader to engage in the material by asking deeper questions or conducting individual research."--Provided by publisher.

The Enterprise is the first to test an engine system that transcends warp drive. The Klingons attempt to thwart the test, but a greater danger looms when time becomes meaningless.

After teenage Sri Lankan Ranjit Subramanian, a math prodigy, reconstructs and publishes the famous last theorem of Pierre de Fermat, the powerful aliens called the Grand Galactics respond to the flash of nuclear explosions and decide to exterminate humanity just as Earth's superpowers develop a new, nonlethal, way of promoting global peace.