Imperial Earth
Duncan Makenzie is the latest generation of the 'first family' of Titan, a colonised moon of Saturn. Originally settled by his grandfather Malcolm Makenzie in the early 23rd century, Titan's economy has flourished based on the harvest and sale of hydrogen mined from the atmosphere, which is used to fuel the fusion engines of interplanetary spacecraft.

As the plot opens in 2276, a number of factors are combining to make a diplomatic visit to the 'mother world' of Earth a necessity. Firstly, the forthcoming 500th anniversary of US Independence, which is bringing in colonists from the entire Solar System, obviously needs a suitable representative from Titan. Secondly, the Makenzie family carry a fatal damaged gene that means any normal continuation of the family line is impossible—so both Duncan and his "father" Colin are clones of his "grandfather" Malcolm. Human cloning is a mature technology but is even at this time ethically controversial. And thirdly, technological advances in spacecraft drive systems — specifically the 'asymptotic drive' which improves the specific impulse and thrust by orders of magnitude — means that Titan's whole economy is under threat as the demand for hydrogen is about to collapse.

The human aspects of the tale center mainly on the intense infatuation (largely unrequited but not unconsummated) that the two main male characters, Duncan and Karl Helmer, develop for the vividly characterized Catherine Linden Ellerman (Calindy), a visitor to Titan from Earth in their youth, and its lifelong consequences.

A number of other sub-plots suggest some sort of greater mystery, but remain unexplored. The book ends with him returning home with his new "child" Malcolm (who is a clone of his dead friend Karl), leaving the other plot threads dangling.

The book is the first work of science fiction to feature a starship powered by a black hole
Solar planets, Future, English Science fiction, Science fiction, Short stories
Arthur C. Clarke
Sir Arthur Charles Clarke CBE FRAS was a British science fiction writer, science writer and futurist, inventor, undersea explorer, and television series host.

He is famous for being co-writer of the screenplay for the 1968 film 2001: A Space Odyssey, widely considered to be one of the most influential films of all time. Clarke was a science writer, who was both an avid populariser of space travel and a futurist of uncanny ability. On these subjects he wrote over a dozen books and many essays, which appeared in various popular magazines. In 1961 he was awarded the Kalinga Prize, an award which is given by UNESCO for popularising science. These along with his science fiction writings eventually earned him the moniker "Prophet of the Space Age". His other science fiction writings earned him a number of Hugo and Nebula awards, which along with a large readership made him one of the towering figures of science fiction. For many years Clarke, Robert Heinlein and Isaac Asimov were known as the "Big Three" of science fiction.

Clarke was a lifelong proponent of space travel. In 1934, while still a teenager, he joined the British Interplanetary Society. In 1945, he proposed a satellite communication system using geostationary orbits. He was the chairman of the British Interplanetary Society from 1946–1947 and again in 1951–1953.

Clarke emigrated from England to Sri Lanka (formerly Ceylon) in 1956, largely to pursue his interest in scuba diving. That year he discovered the underwater ruins of the ancient Koneswaram temple in Trincomalee. Clarke augmented his fame later on in the 1980s, from being the host of several television shows such as Arthur C. Clarke's Mysterious World. He lived in Sri Lanka until his death.

Clarke was appointed Commander of the Order of the British Empire (CBE) in 1989 "for services to British cultural interests in Sri Lanka". He was knighted in 1998 and was awarded Sri Lanka's highest civil honour, Sri Lankabhimanya, in 2005.

---From Wikipedia