The ringed gas giant Saturn is the most promising colony site in the Outer Solar System. Both distance and budgetary concerns mean that Saturn has been visited only twice by manned expeditions, one of...

The gas giant Jupiter is the World Union’s most distant and most-recently-settled colony. The Galilean moons are rapidly industrialising thanks to the ready availability of energy and mineral resource...

Even in the age of fusion, the old maxim that once you are halfway to orbit, you are halfway to anywhere holds true.

The Asteroid Belt is the economic engine of the Solar System, providing vast amounts of raw materials for the system’s inner planets. It is also its primary source of insecurity, being the home of a m...

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Nuclear fusion is the dominant form of power generation and propulsion in the 22nd century, producing vast amounts of non-polluting energy from astronomically-abundant fuel sources.

The Red Planet has not lived up to the aspirations of ages past: radiation and the toxic, perchlorate-rich soil make it unattractive for industrial development, while its relatively high gravity and t...

The cradle of humanity, Earth is home to twelve billion people as of 2125. Earth has benefited immeasurably from space in the last thirty years. Cheap fusion power has ended reliance on fossil fuels, ...

The invention of the fusion torch engine in the late 20th century was perhaps the most important in human history: in 2093, the first fusion torch spacecraft, the Prometheus, flew to Mars in twenty-fi...

Formed 4.6 billion years ago by the gravitational collapse of an immense cloud of gas and dust, the Solar System consists of eight planets, nine dwarf planets, and millions of asteroids and comets orb...

The World Union for Space Policy is the governing body for space in the 22nd century, a political and economic union of nation-states that ensures equitable access to the Solar System’s resources and ...