Broadcast 3122 Hotel Mars with William Harwood, CBS Space News

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Guests: John Batchelor, Bill Harwood, Dr. David Livingston.  Topics:  SpaceX Falcon 9 launch of both commercial & government satellites.  Written Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce.  This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program,  Remember, your Amazon Purchases Can Help Support The Space Show/OGLF ( note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio.

John Batchelor and I welcomed back Bill Harwood of CBS Space News to discuss the Falcon 9 Block 4 launch of both a government and commercial payload earlier in the day.  We talked about the two climate satellites as part of the payload, the GRACE Follow On satellites (known as GRACE FO).  The two satellites were the Gravity Recovery and Climate Experiment Follow-On birds replacing older versions while the commercial satellites were five replacement satellites for the Iridium NEXT global communication satellite constellation. Pay particular attention to the technical and working details provided by Bill for both the GRACE FO satellites as well as the Iridium replacement satellites.  We also talked about why these payloads were launched on a Block 4 Falcon 9 which was used several months ago on the ZUMA launch.  Bill then talked differences in Block and the Block 5 which recently flew for the first time.  As for competing with SpaceX, note what Bill said near the end of the segment regarding ULA and Blue Origin.  Bill did say that SpaceX and Musk were definitely driving the conversation about rocketry along with the technology.

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F9 Block 5 launch, satellites launched by SpaceX and more

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23 May 2018 John Batchelor, Dr. David Livingston, William Harwood
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