Article Abstract:
Mercury is one of the hardest planets to visit using 1990s space technology, but the use of solar sails could solve the problem. Solar sails use no fuel and are extremely cheap to build and operate. They may be the only practical and cost-effective means by which man can travel to Mercury.
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Article Abstract:
The planet Mercury has long been neglected as an object of scientific exploration. The history of past investigations of Mercury is presented, including arguments for and against future missions to the planet. A possible design for a future Mercury space probe is also discussed.
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Article Abstract:
Deep space probes have been steadily adding to man's knowledge of Jupiter and its moons. A review of past Jupiter probes and a look at possible future Jupiter missions are presented and discussed.
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