Black Hole in Our Solar System

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although...

Oort Cloud Voyager 2

The Oort cloud is thought to occupy a vast space from somewhere between 2,000 and 5,000 au (0. 03 and 0. 08 ly) to as far as 50,000 au (0. 79 ly) from the Sun. Some estimates place the outer edge at between 100,000 and 200,000 au (1. 58 and 3. 16 ly). The region can be subdivided into a spherical outer Oort cloud of 20,000–50,000 au (0. 32–0. 79 ly), and a torus-shaped inner Oort...

Kerbal Space Program Speeder

Players can create rockets, aircraft, spaceplanes, rovers, and other craft from a provided set of components. Once built, the craft can be launched by players from the KSC launch pad or runway, or other launch pads and runways around Kerbin, in an attempt to complete player-set or game-directed missions while avoiding partial or catastrophic failure (such as lack of fuel or structural failure)....
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