Highlights From Musk’s Ask Me Anything Session on Reddit

Elon Musk (Credit: SpaceX)

Elon Musk conducted an Ask Me Anything session on Reddit on Saturday. Below are selected responses to questions. A full list of questions and answers is located here.

BFR Development

Will be starting with a full-scale Ship doing short hops of a few hundred kilometers altitude and lateral distance. Those are fairly easy on the vehicle, as no heat shield is needed, we can have a large amount of reserve propellant and don’t need the high area ratio, deep space Raptor engines.

Next step will be doing orbital velocity Ship flights, which will need all of the above. Worth noting that BFS is capable of reaching orbit by itself with low payload, but having the BF Booster increases payload by more than an order of magnitude. Earth is the wrong planet for single stage to orbit. No problemo on Mars.
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Morgan Stanley: SpaceX Value Could Grow to $50 Billion

SpaceX launched its 12th resupply mission to the International Space Station from NASA’s Kennedy Space Center in Florida at 12:31 p.m. EDT on Monday, Aug. 14, 2017. (Credit: NASA Television)

An interesting analysis of SpaceX by Morgan Stanley.

SpaceX could become a $50 billion juggernaut through its launch of a satellite broadband network, a team of Morgan Stanley analysts wrote in a report Thursday….

Morgan Stanley says SpaceX developing reusable rockets is “an elevator to low Earth orbit.”

“When Elisha Otis demonstrated the safety elevator in 1854, the public may have struggled to comprehend the impact on architecture and city design. Roughly 20 years later, every multistory building in New York, Boston, and Chicago was constructed around a central elevator shaft,” Morgan Stanley said. “It all comes down to SpaceX.”

Reducing the cost to launch a satellite to about $60 million, from the $200 million that United Launch Alliance charged through most of the last decade, was a monumental breakthrough. SpaceX is trying to reduce its cost to $5 million per mission, and Morgan Stanley says the launch business “generates limited operating income.”

Read the full story.

USAF Issues RFP for New Launch Vehicles

The U.S. Air Force issued a request for proposals (RFP) last Thursday for a new launch vehicle to handle national security space (NSS) requirements.

“The goal of the EELV acquisition strategy is to leverage commercial launch solutions in order to have at least two domestic, commercial launch service providers that also meet NSS requirements, including the launch of the heaviest and most complex payloads,” the proposal states.

“The Launch Service Agreements (LSAs) facilitate development of at least three EELV Launch System prototypes as early as possible, allowing those launch systems to mature prior to a future selection of two NSS launch service providers for Phase 2 launch service procurements, starting in FY20,” the proposal adds.
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The Everyday Astronaut Looks at Elon Musk’s BFR

Video Caption: Elon Musk revealed the update to SpaceX’s highly anticipated and ambitious rocket, the BFR or the Big (FALCON) Rocket. We compare this version of the BFR to last year’s version as well as speculate about SpaceX’s mind blowing plans to head to the Moon, Mars as well as anywhere on Earth within one hour!

Doubts Raised About Elon Musk’s Point-to-Point by Rocket Plan

BFR crew vehicle propulsion (Credit: SpaceX)

John Logsdon has spotted a potentially showstopping problem with Elon Musk’s plans to fly people point-to-point using his humongous rocket.

“It is a very attractive prospect, but I think extremely unrealistic in any relevant time frame,” Logsdon told CNBC in an interview….

Passengers on a spacecraft are subject to forces that are as much as five times the force of gravity as they accelerate into space, then are in microgravity or zero gravity for the duration of the flight. They get hit with the G-force again on landing, he said.

“The idea that a typical airline passenger would be able to go through the experience just doesn’t compute,” he said. “Musk calls all of this ‘aspirational,’ which is a nice code word for more than likely not achievable.”

However, Logsdon did say Musk’s presence and his work is healthy for the industry overall.

“I think the phenomenon called Elon Musk is fascinating and serves as a kind of beacon of hope that there is a better space future ahead of us,” he said, “and the transition from that beacon to reality will almost certainly take longer than Elon and his supporters hope.”

Read the full story.

Great Overview of the Technical Aspects of Elon Musk’s BFR

Video Caption: Elon Musk presented the latest updates on SpaceX’s long term plans for their ‘BFR’ at the IAC in Adelaide. I now have an inbox of messages asking for my take on it all so – let’s talk about the plans that he presented.

The main points are the BFR (Big Rocket) is now a lot smaller than the original design, it still uses 2 stages and refuels in orbit enabling it to go to Mars, but now it’ll also be setup as a satellite launch vehicle, cargo ship able to visit ISS and the surface of the moon. But most surprisingly, and perhaps least realistically, he pitched a new passenger design intended to carry people halfway around the Earth at hypersonic speeds.

Meet the Son of Shuttle: Elon Musk’s BFR Will Do It All

SpaceX CEO Elon Musk introduced a renamed version of his Martian colonial transport vehicle on Friday that was simultaneously shrunken somewhat in size but much larger in its ambition.

The big change in the newly renamed BFR  — for big effing rocket — involved reducing the number of first stage engines from 42 to 31 engines. Despite the reduction, the second stage booster/spacecraft would still be capable of carrying up to 100 people to the Red Planet.

The biggest change involves BFR’s scope. Not only would it the basis for building a Mars colony and moon base, it would completely disrupt terrestrial transportation by taking passengers between any two spots on Earth in less than an hour.

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IAC Updates: Starliner, Rocket Lab and Long March 5

Electron lifts off on maiden flight from Mahia Peninsula in New Zealand. (Credit: Rocket Lab)

The International Astronautical Congress has been going on all week down in Adelaide, Australia. In addition to Elon Musk’s presentation on Friday and some news I’ve already posted here, there have been a few updates on various programs.

Boeing CST-100 Starliner.  Boeing is aiming for a test flight of the CST-100 Starliner to the International Space Station in the third quarter of 2018. However, the first crewed test flight could slip from the fourth quarter of 2018 into the first quarter of 2019.  Link

Rocket Lab. The company’s next test launch will carry will two Dove Cubesats from Planet and a pair of Lemur CubeSsats from Spire Global. The satellite will allow Rocket Lab to test deploying spacecraft from the second stage of its Electron rocket. The launch is planned for several weeks from now. Link

Long March 5. The failure of a Long March 5 booster in July will delay the launch of China’s Chang’e-5 lunar sample return mission, which had been scheduled for November. The Chang’e-4 mission, which will land on the far side of the moon, also will be delayed. That flight had been scheduled for late next year. The accident investigation is ongoing. Link

Musk’s Mars 2.0 Presentation Might Not be Webcast

Well, that’s the good news. The bad news?

It’s not real clear whether the world will be able to see his presentation on Friday. There were some Tweets suggesting it would be webcast. This was followed by an official tweet from the IAF that it would not be. I’ve seen some grumbling that the reason for not webcasting it involves the state of Australia’s Internet not being especially fast.

I will continue to monitor the situation and provide updates as we get them. Now back to your regular Monday programming.

Branson Envisions 20 SpaceShipTwos; Brian Cox’s Space Race Doc Prepares to Drop

Richard Branson and George Whitesides gave out at SpaceShipTwo after it came to a stop on Runway 12. (Credit: Douglas Messier)

The Sunday Times of London has an update on Virgin Galactic that seems to be based around an upcoming Brian Cox documentary on space tourism, which is set to air early next month in Britain.

Branson could be first in the mass tourism market despite a disastrous 2014 test flight in which a pilot died. Unity is to start rocket tests this autumn, and two more craft are under construction.

“We are hoping to be into space by the end of the year,” said Branson, who has spent £450m on the project. “The cost has been a lot more than we thought . . . but we can see the price falling and we could have 20 spaceships operating so that . . . enormous numbers of people could go into space.”

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