San Francisco Chronicle

Musk’s SpaceX goals

Flights to Mars, moon — Shanghai and New York, too

- By Marcia Dunn

SpaceX chief Elon Musk’s elaborate plan for a megarocket to carry astronauts to Mars may have some down-toEarth applicatio­ns.

At a conference in Australia on Friday, Musk said if you build a ship capable of going to the moon and Mars, why not use it for high-speed transport here at home. He proposes using his still-in-the-designphas­e rocket for whisking passengers from New York to Shanghai in 39 minutes flat.

Los Angeles to New York, or Los Angeles to Honolulu in 25 minutes. London to Dubai in 29 minutes.

“Most of what people consider to be long-distance trips would be completed in less than half an hour,” Musk said to applause and cheers at the Internatio­nal Astronauti­cal Congress in Adelaide.

A seat should cost about the same as a full-fare economy plane ticket, he noted later on Instagram.

Friday’s address was a follow-up to one he gave to the group last September in Mexico, where he unveiled his grand scheme for colonizing Mars. He described a slightly scaled-down 348-foot-tall rocket and announced that the private space company intends to launch two cargo missions to Mars in 2022.

“That’s not a typo,” he said, pausing, as charts appeared on a large screen. “Although it is aspiration­al.”

Two more cargo missions would follow in 2024 to provide more constructi­on materials, along with two flights carrying crews. The window for launching to Mars occurs every two years.

For the approximat­ely sixmonth, one-way trips to Mars, the SpaceX ships would have 40 cabins, ideally with two to three people per cabin for a grand total of about 100 passengers.

“Most of what people consider to be long-distance trips would be completed in less than half an hour.” Elon Musk, on plans to use SpaceX rockets for travel on Earth

Musk foresees this Mars city growing, and over time “making it really a nice place to be.”

Scott Hubbard, an adjunct professor at Stanford University and a former director of NASA’s Ames Research Center, calls it “a bold transporta­tion architectu­re with aspiration­al dates.” A demonstrat­ion of some sort in the 2020s will add to its credibilit­y, he said in an email. And while more details are needed for life-support systems, he added, “Kudos to Elon and SpaceX for keeping the focus on humans to Mars!”

Former NASA chief technologi­st Bobby Braun, now dean of the college of engineerin­g and applied science at the University of Colorado at Boulder, also sees Musk’s plan as a step in the right direction, building on technologi­es SpaceX already has demonstrat­ed, like reusable rockets.

“While the timeline and capabiliti­es are certainly ambitious, I’m bullish on U.S industry’s ability to carry out challengin­g and far-reaching goals,” Braun wrote in an email. “It’s great to see the private sector lead in this way, and I hope we see more of it.”

NASA is charting its own path to what it calls the Deep Space Gateway, beginning with expedition­s in the vicinity of the moon in the 2020s and eventually culminatin­g at Mars. The space agency has handed much of its Earth-orbiting work to private industry, including SpaceX, Orbital ATK and Boeing.

Earlier Friday in Adelaide, Lockheed Martin presented its vision for a Mars Base Camp in partnershi­p with NASA. Astronauts could be on their way in about a decade, the company said. This first mission would orbit the red planet, rather than land.

Musk intends to finance his $10 billion Mars endeavor by using a rocket that’s smaller than the one outlined last year. Fewer engines would be needed: 31 instead of the originally envisioned 42. Its lift capability would be 150 tons, more than NASA’s old moon rocket, the Saturn V.

 ?? SpaceX ?? This artist’s rendering shows the new 350-foot-tall mega-rocket design that SpaceX will use for flights to the moon and Mars.
SpaceX This artist’s rendering shows the new 350-foot-tall mega-rocket design that SpaceX will use for flights to the moon and Mars.
 ?? Brian van der Brug / Los Angeles Times ?? SpaceX founder Elon Musk displays the SpaceX Dragon capsule that is used to deliver supplies to the Internatio­nal Space Station.
Brian van der Brug / Los Angeles Times SpaceX founder Elon Musk displays the SpaceX Dragon capsule that is used to deliver supplies to the Internatio­nal Space Station.
 ?? SpaceX ?? This artist’s rendering shows the new SpaceX mega-rocket reaching the Internatio­nal Space Station.
SpaceX This artist’s rendering shows the new SpaceX mega-rocket reaching the Internatio­nal Space Station.

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