Writing
Articles and interviews
Between 2017 and 2026 Henry wrote twenty-two essays for Creation-Evolution Headlines, the site run by his Spacecraft Earth co-author David Coppedge. They range from Sputnik memories and the physics of habitable planets to the engineering of teeth, bones and dragonflies. Each title opens the article on crev.info. His earlier technical writing on Explorer 1, and his articles and talks for the Radio Club of America, are listed alongside.
Essays at Creation-Evolution Headlines
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Oct 30, 2025
Space Pioneer in Awe of Creation
If a piano requires a piano-maker, how much more does a universe require a universe-maker?
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Jun 23, 2023
Some Thoughts About Everything
How some super intelligence could create such complex but simple things is absolutely amazing to this veteran NASA pioneer.
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Aug 30, 2022
The “Empty” Space in the Brain Has Vital Functions
Extra-cellular space, the space between brain cells, has important functions that are mind-boggling too.
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Aug 25, 2021
How Did Dragonflies Come By an Intercept Capability?
Dragonflies can track a prey, anticipate its future path, fly to a rendezvous point on that path and intercept it.
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Jun 17, 2021
Thoughts about Tooth Enamel
The minerals that make up teeth provide another example of phenomenally detailed design.
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Jan 23, 2021
Matched Design in Human Reproduction Defies Evolution
An excerpt from Spacecraft Earth on the complex design of human reproduction.
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Jul 1, 2020
Titan Is Running Away from Saturn
When a scientist up-ends what was long believed, how confident can they be about what they believe now?
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Nov 2, 2019
How the Cell Handles Oxygen: A Nobel Prize Discovery
Cellular oxygen regulation, the discovery that won three researchers the Nobel Prize.
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Jun 1, 2019
Where Did Earth’s Water Come From?
Water is just one big problem facing scientists who feel a need to explain everything without design.
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Apr 17, 2019
Mechanical Engineering in the Skeleton
Some of the design requirements for having a skeleton.
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Apr 9, 2019
Wonders of the Immune System
Medical science has barely begun to understand all of the facets of the human immune system.
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Jan 7, 2019
Ode to the Amazing Atom
A Caltech chemist explores the designed intricacies of the building blocks of the universe.
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Jul 6, 2018
The Frantic Determination of Some Scientists to Discover Life Elsewhere
We often hear exciting news about habitable planets that might have life, or at least the building blocks of life.
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Oct 7, 2017
Rocket Scientist Recalls Sputnik 60 Years Ago
Memories of the early space race that began with Sputnik, sixty years on.
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Sep 18, 2017
Facing Reality About Life on Other Planets, 6: Chemistry and Probability
The final segment on exoplanet habitability looks at chemistry and probability.
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Sep 12, 2017
Facing Reality About Life on Other Planets, 5: Water and Rock
There is much interest in searching for life elsewhere in the universe.
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Sep 5, 2017
Facing Reality About Life on Other Planets, 4: Geophysics
The requirements to allow life to exist on a planet elsewhere in the universe, continued.
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Aug 29, 2017
Facing Reality About Life on Other Planets, 3: Moon, Atmosphere, and Mass
Part three of the series on what a planet needs to support life.
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Aug 19, 2017
Habitability Requires the Right Kind of Star
Part two: not every star can host a living planet.
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Aug 15, 2017
Explorer 1 Pioneer Corrects Mistakes in Space.com Article
The instrument manager for the 1958 Explorer 1 mission sets the record straight.
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Aug 11, 2017
Facing Reality About Life on Other Planets
Watching the scientific community conduct a frantic campaign to identify life elsewhere in the universe.
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Jul 31, 2017
Earth’s Magnetic Field Protects Us from Solar Sneezes
The Van Allen belts capture high-energy particles from the Sun, showing how Earth’s space environment protects life.