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Readers! A November fund-raising drive!

 

It is unfortunately time for another November fund-raising campaign to support my work here at Behind the Black. I really dislike doing these, but 2025 is so far turning out to be a very poor year for donations and subscriptions, the worst since 2020. I very much need your support for this webpage to survive.

 

And I think I provide real value. Fifteen years ago I said SLS was garbage and should be cancelled. Almost a decade ago I said Orion was a lie and a bad idea. As early as 1998, long before almost anyone else, I predicted in my first book, Genesis: The Story of Apollo 8, that private enterprise and freedom would conquer the solar system, not government. Very early in the COVID panic and continuing throughout I noted that every policy put forth by the government (masks, social distancing, lockdowns, jab mandates) was wrong, misguided, and did more harm than good. In planetary science, while everyone else in the media still thinks Mars has no water, I have been reporting the real results from the orbiters now for more than five years, that Mars is in fact a planet largely covered with ice.

 

I could continue with numerous other examples. If you want to know what others will discover a decade hence, read what I write here at Behind the Black. And if you read my most recent book, Conscious Choice, you will find out what is going to happen in space in the next century.

 

 

This last claim might sound like hubris on my part, but I base it on my overall track record.

 

So please consider donating or subscribing to Behind the Black, either by giving a one-time contribution or a regular subscription. I could really use the support at this time. There are five ways of doing so:

 

1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.

 

2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation. Takes about a 10% cut.
 

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4. Donate by check. I get whatever you donate. Make the check payable to Robert Zimmerman and mail it to
 
Behind The Black
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You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.


A tumbling 1,100-foot-wide asteroid

Nereus tumbling on December 10th close approach
Click for full image.

Using the Goldstone radio antenna in California, scientists have been able to take some of the highest resolution radar images of the 1,100-foot-wide asteroid Nereus during its close approach to Earth on December 10, 2021.

The montage to the right, cropped to post here, shows twelve images from the 39-image sequence, which can also be viewed as an animation here.

During the asteroid’s close approach, an image resolution of about 12.3 feet (3.75 meters) per pixel was possible, revealing surface features such as potential boulders and craters, plus ridges and other topography. Asteroid Nereus’ previous approach in 2002 was near enough to Earth to reveal the asteroid’s size and overall shape, but too distant to show surface features. The new observations will also help scientists better understand the asteroid’s shape and rotation while providing them new data to further refine its orbital path around the Sun.

The asteroid will not make a similar close-approach again until 2060.

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 or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. 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

5 comments

  • Lee Stevenson

    I have a question for those who understand radio astronomy better than myself.
    Would these images be captured “radar” style, by actively bouncing radio waves of the astroid?
    I actually don’t really understand imaging by radio astronomy in general, any reference to a good text based source where I can educate myself would be appreciated.

  • Jay

    Lee,
    Correct, this is Radar Astronomy. Places like the former Aericebo, Goldstone, and other radar sites, like the Deep Space Network, would transmit transmit anywhere from a few hundred kilowatts to over one Megawatt at microwave frequencies. The signal would hit the object, reflect the signal back, the same dish would receive the weak signal, the signal would go into preamps and signal processing to be outputted on a display. The computer does all the work. Here is a good introduction to Radar Astronomy.

    I am into ham radio, so working satellites and weak signal processing can be done by anyone. A lot of the equipment can be bought off the shelf for under $100, like I said the computer is doing all the work. Of course that is radio astronomy, you are only receiving radio signals. If you want to do radar astronomy, you need a lot of money for equipment and the power bill.

  • Lee S

    Thank you Jay!
    Unfortunately I cannot get the link to open, I’d be very pleased to have a read if you could post it again please.

  • Jay

    Sorry Lee,
    My bad, here is site again from National Academies Press: https://www.nap.edu/read/21729/chapter/8

    Also here is another one that describes both radio and radar astronomy: https://www.nap.edu/read/12410/chapter/5
    It is a dated document but the theories are still true.

  • Lee S

    Thank you Jay…. After a quick scan I’ve got some interesting Sunday reading!

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