The alternative view: Planets of binary star systems

Article Abstract:

The three-body problem referring to the large number of binary star systems in the galaxy and the relative rarity of triple-star systems is discussed. There are numerical methods for solving the three-body problem to high accuracy, so that with modern computers one can calculate orbits of multi-body systems to whatever precision one is willing to expend the resources to obtain.

Observations, Outer space, Space exploration, Stars, Double, Binary stars, Binary system (Mathematics)

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Inside the quark

Article Abstract:

A Feb. 1996 study by the Collider Detector at Fermilab indicated that the quark has an internal substructure. This disproves the quantum chromodynamics model which has always assumed that the quark is a fundamental particle.

Research, Evaluation, Quarks, Quantum chromodynamics

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A stroll through the Lyman-alpha forest

Article Abstract:

An analysis is presented of the Lyman-alpha forest, a characteristic of distant quasars. The Lyman-alpha forest has become a standard tool of astrophysics, providing evidence that the cosmological red shift is real.

Study and teaching, Identification and classification, Astrophysics, Quasars

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