Reasons to Believe

Solar System Design

  • Planetary Orbits and Bolides

    TNRTB Archive - Retained for reference information

    An interdisciplinary team performed the first long term integration of the solar system’s planetary orbits. They found the orbits of the four … more

  • Extrasolar Planetary Systems

    TNRTB Archive - Retained for reference information

    Thirteen multiple planet systems have been discovered. These systems, however, all appear to manifest mean motion resonances and apsidal phase … more

  • Pre-Protostellar Cores

    TNRTB Archive - Retained for reference information

    Recent studies of pre-protostellar cores establish that astronomers really are witnessing and understanding the processes leading to the conception … more

  • The First Stars

    TNRTB Archive - Retained for reference information

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    X-NONE … more

  • Young Solar-Type Stars I

    TNRTB Archive - Retained for reference information

    Astronomers discover that solar-type stars younger than 50 million years, in addition to manifesting large unpredictable brightness changes, … more

  • Young Solar-Type Stars II

    TNRTB Archive - Retained for reference information

    Astronomers discover that spots on the surface of stars, even stars of the same mass as the sun, can attain such large sizes that they generate … more

  • Solar Irradiance Variability

    TNRTB Archive - Retained for reference information

    Astronomers discover that faculae, large-scale bright solar surface features, contribute 80% of the total solar irradiance variability. To keep this … more

  • Does the Sun Shrink?

    TNRTB Archive - Retained for reference information

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    X-NONE … more

  • The Faint Sun Paradox

    Debates over global warming—how to measure it, the causes and effects, what to do about it and when—have raged for decades, with no resolution yet in view. Huge media coverage and … more

  • Fine-Tuning for Life on Earth (JUNE 2002)

    © 2002 Reasons To Believe

    Evidence for the Fine-Tuning of the Galaxy-Sun-Earth-Moon System for Life Support

    The environmental requirements for life to exist depend quite strongly on the life … more

  • Probabilities for Life on Earth (JUNE 2002)

    © 2002 Reasons To Believe

    An Estimate of the Probability for Attaining the Necessary Parameters for Life Support1-85

    Parameter

    Probability that feature will Fall in the required … more

  • Fine-Tuning for Life in the Universe (JUNE 2002)

    © 2002 Reasons To Believe

    For physical life to be possible in the universe, several characteristics must take on specific values, and these are listed below.1 In the case of several of these … more

  • Sun’s Stable Fluctuations

    The Sun has the reputation of being the most stable burning star, astronomers observe. Its extreme stability allows humans to exist on Earth. But this stability won’t last forever.

    Over … more

  • Rare Sun

    by Dr. Guillermo Gonzalez

    How often have you heard that “the Sun is just an average star?” If you’ve watched many TV documentaries or read introductory astronomy books, chances are … more

  • Missing Solar Neutrinos Found

    What makes the Sun shine? Where does Earth’s life-sustaining radiation originate? Astronomers answered these questions in part with the discovery of nuclear fusion, the same process that powers … more

  • Jupiter's Migration Miracle

    A few years ago, a probe sent on a self-destruct mission into the interior of Jupiter revealed that Jupiter’s atmosphere grew dark and dry very soon after its formation.1 Continuing analysis of … more

  • Anthropic Principle: A Precise Plan for Humanity

    Human beings climb. Always have, always will. First hills, then mountains, then pinnacles so high they're called "death zones." That's as high as legs could carry them, but not high enough. So people … more

  • A Comment on Humility Theology

    The anthropic principle faces serious challenges from outside the disciplines of astronomy and physics. Many scholars in the humanities and social sciences fear that the anthropic principle will … more

  • The Sun's Stable Diameter

    The Sun has the reputation of being the most stable burning star that astronomers observe. Its extreme stability allows humans to exist on Earth. Variations in its burning, periods of significantly … more