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.
"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
Link here. With yesterday’s launch, SpaceX now has put 420 satellites in orbit.
In a recent interview with Aviation Week, SpaceX President Gwynne Shotwell said that they should begin beta testing the network this year and would want to complete around 14 launches before publicly promoting Starlink service. That could allow service to begin as soon as early 2021 depending on how fast launches can be performed.
In a recent ITU filing, SpaceX laid out a very aggressive schedule for continuing the Starlink deployment, with 13 launches in the May to September time period. This schedule is likely to spread out a bit as they run into normal launch cadence issues such as weather, range coordination, booster recovery operations, and booster refurbishment.
The first launch in that group (June 3 in Florida) has been delayed nearly a month for the above reasons. Regardless of exactly how long those launches end up taking, Ms. Shotwell’s comments indicate SpaceX doesn’t think satellite production will be a gating factor for their deployments in the near future.
An interesting feature of the schedule is that after this frenzy of launches, there would be a gap with only one launch in four months, followed by a period of twice-monthly launches to finish out the initial 1584 satellite shell of the constellation. SpaceX may have options to make changes to the satellites during that pause in the deployments, such as adding the optical inter-satellite links that have been mentioned as debuting later in 2020.
The article then provides a great deal of information about the system’s design and status for beginning operations in the U.S. Well worth a close read.
We are now in the third week of my annual July fund-raiser for Behind the Black. My deep thanks to everyone who has so far donated or subscribed. The response this year has been wonderful.
We are not done yet. This monthly fund-raiser is now half over, and I am hoping the second half will result in as many donations as the first half did. If it does, I will remain free to continue my writing as I see fit, unblemished by the efforts of others to squelch my perspective in this increasingly intolerant world.
This year's fund-raising drive is also significant in that it celebrates the 10th anniversary of this website's founding. It is hard to believe, but I have been doing this for a full decade, during which I have written more than 22,000 posts, of which more than 1,000 were essays and almost 2,600 were evening pauses.
Therefore, I hope you will please consider donating to Behind the Black, by giving either a one-time contribution or a regular subscription, as outlined in the tip jar below. Your support will allow me to continue covering science and culture as I have for the past twenty years, independent and free from any outside influence.
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