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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News


More Io images by Juno, enhanced by citizen scientists

Io in natural and enhance colors
Click here for original of top image,
here for bottom.

Since Juno completed its 55th close swing past Jupiter on October 15, 2023, including the closest fly by of its volcano-covered moon Io since the 1990s, citizen scientists have been grabbing the spacecraft’s raw images of the moon and enhancing them to bring out the details.

Immediately after the fly-by I posted on October 17, 2023 the top image to the right, processed by Ted Stryk. This version attempted to capture the view of Juno is natural color. As I noted then, “The dark patches are lava flows, with the dimensions of mountains along the terminator line between night and day clearly distinguishable.”

The bottom picture to the right was first processed by citizen scientist Gerald Eichstädt, who like Stryk attempted to capture Io’s natural colors. Thomas Thomopoulos then took Eichstädt’s image and enhanced the colors as well as reduced the brightness, in order to bring out the details as much as possible.

I have rotated, cropped, and reduced this bottom image further to post it here.

In comparing this image with earlier pictures of Io, taken by both Juno and Galileo in the 1990s, there is evidence that some of the lava flows visible now have changed significantly in the intevening time. This is not a surprise, as volcanic eruptions take place on Io so frequently that it has not unusual to capture one in the rare times close up images are possible, going back to the discovery of volcanic activity by Voyager-1 in 1979.

It will take a bit of time for scientists, both professional and amateur, to pick out the specific changes. That work will be further aided by Juno’s next fly-by on December 30, 2023, where it will dip to less than 1,000 miles of the surface.

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3 comments

  • As the most recent closest approach was just over 7000 miles, I am looking forward to the 30 December images.

  • Max

    Io (/ˈaɪ.oʊ/), or Jupiter I, is the innermost and third-largest of the four Galilean moons of the planet Jupiter. Slightly larger than Earth’s moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water (by atomic ratio) of any known astronomical object in the Solar System.
    https://en.wikipedia.org/wiki/Io_(moon)

    I have long believed that the (Mars sized) object to hit the earth was the moon. The isotopic ratios are identical to earth. The missing mass, 2 miles of the surface facing earth, is approximately the same amount of mass that makes up the contents. A plausible reason how the mass of the continents is on top of the ancient carbon dioxide atmosphere creating oil (fossil fuel) from the heat and pressure. The gravity of the moon tugging on the continents resulting in continental drift at the same rate approximately as your growing fingernails.

    The collision plus the mass transfer was enough to capture the moon in an elliptical orbit. Granite exploding from the earth possibly cracking the earth along the mid Atlantic.

    The point of my post is the realization in this picture of how our moon should look with giant volcanoes and the piles of lava surrounding them. Half of the visible surface of the moon is said to be basalt (more likely obsidian from friction heating from passing through earths atmosphere).

    Basalt lava fields covering half of the surface of the moon facing earth should have volcanoes across that surface looking like Io.

    Having said that, the two moons are entirely too different circumstances. Although there are some similarities in size and mass… Jupiters second south pole (the Great Red Spot) has extremely large induction heating mechanism on a dense probably metallic moon causing active volcanoes… Our moons volcanoes, should we find any, would have been long extinct.

  • Edward_2

    Pictures look like the oranges in my refrigerator.

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