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Facing Reality About Life on Other Planets, 6: Chemistry and Probability

In this final segment about habitability of exoplanets, Dr Henry Richter looks at chemistry and probability.

Facing Reality About Life on Other Planets, 5: Water and Rock

by Dr Henry Richter There is much interest in searching for life elsewhere in the Universe. In previous articles I talked about the many criteria describing conditions and circumstances required to establish and maintain life on a planet. I talked about the importance of the location of the planet in its solar system. The location […]

Facing Reality About Life on Other Planets: Geophysics

by Dr Henry Richter This is a continuation of my discussion on the requirements to allow life to exist on a planet elsewhere in the universe. My discussion moved from our position in the galaxy, our position in the solar system, and then focused on the earth, looking at the influence of our moon, our […]

Earth’s Magnetic Field Protects Us from Solar Sneezes

By capturing solar 'sneezes' of high-energy charged particles, the Van Allen Belts provide a prime example of how the earth and its space environment are designed to allow and protect life.

Thank Van Allen's Belts and Richter's Rockets

Invisible shields above the Earth protect us all from dangerous radiation. New space probes explore how they do it.

Juno How Old the Solar System Is?

Everyone knows the solar system is 4.5 billion years old. Everyone, that is, except Nature herself.

Explorer 1 Chief Discovers Design

On this day 50 years ago, America entered the space race.  On January 31, 1958, America gave its answer to Sputnik: a civilian satellite named Explorer 1.  Within a few hours of the time of day these words are being written, von Braun’s Jupiter-C rocket at Cape Canaveral, Florida, successfully launched a JPL satellite into […]
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