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Johannes Kepler
Johannes Kepler (December 27, 1571 - November 15, 1630), a key figure in the scientific revolution, was a German Lutheran mathematician, astrologer, and astronomer. Kepler lived in an era when there ... > more -
Stellar nucleosynthesis
Stellar nucleosynthesis is the collective term for the nuclear reactions taking place in stars to build the nuclei of the heavier elements. The processes involved began to be understood early in the ... > more -
Nicolaus Copernicus
Nicolaus Copernicus (February 19, 1473 - May 24, 1543) was the astronomer who formulated the first modern heliocentric theory of the solar system. His epochal text, De revolutionibus orbium ... > more -
Earth's magnetic field
Earth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with one pole near the geographic north pole and the other near the geographic south pole. The locations of ... > more -
Star Trek: The Original Series
Star Trek is a science fiction television series created by Gene Roddenberry which aired from September 8, 1966 through June 3, 1969, with a total of 79 episodes aired and 80 episodes produced. ... > more -
Rocket engine
A rocket engine is a reaction engine that can be used for spacecraft propulsion as well as terrestrial uses, such as missiles. Rocket engines take their reaction mass from within the vehicle and form ... > more -
Planetary habitability
Planetary habitability is the measure of an astronomical body's potential to develop and sustain life. It is generally assumed that any extraterrestrial life that might exist will be based on the ... > more -
Schrodinger's cat
Schrödinger's cat is a seemingly paradoxical thought experiment devised by Erwin Schrödinger that attempts to illustrate the incompleteness of an early interpretation of quantum mechanics ... > more
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