注册 登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

松鼠的空天随笔

 
 
 

日志

 
 

2018年重型猎鹰+龙2载人绕月飞行  

2017-02-28 19:29:24|  分类: Space |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
今天早上发布的消息:

简单地说,重型猎鹰发射龙2载人飞船,远地点50万到60万公里。据说2018年的红龙推迟到2020年,也于这个任务有关,之前SpaceX已经告知了NASA,所以很多人都猜测,或许这是NASA修改EM-1绕月任务变为载人版的原因

此前
NASA考虑EM-1任务载人环月:
https://www.yahoo.com/news/nasa-considering-manned-flight-first-204243731.html
NASA's Space Launch System rocket, currently in development, will be the largest rocket ever built when completed. The agency was planning an unmanned test flight for the rocket in September 2018, but now NASA is considering launching with a crew on the SLS's first flight, known as Exploration Mission-1 or EM-1.

2018年红龙已经推迟到2020年:
Official


http://money.cnn.com/2017/02/27/technology/spacex-moon-tourism/index.html?adkey=bn

Two thrill seekers are paying SpaceX to make a trip around the moon next year.

SpaceX CEO Elon Musk announced Monday afternoon that the space tourists had already placed a significant deposit for the trip. The travelers will undergo fitness tests and begin training later this year.

"Like the Apollo astronauts before them, these individuals will travel into space carrying the hopes and dreams of all humankind, driven by the universal human spirit of exploration," SpaceX said in a blog post.

For takeoff, SpaceX will use the same launch pad near Cape Canaveral, Florida, that was used for the Apollo programs missions. No humans have traveled past low Earth orbit since the final Apollo mission in 1972. (Low-earth orbit is essentially the first rung on the ladder in being to space. It's also where some satellites that circle the Earth reside.)

spacex moon

The company doesn't expect this to be a one-time mission. SpaceX said that other people have expressed strong interest in making the trip. The names of the first two travelers have not been released. They are likely paying millions for the adventure.

For comparison, space tourists have previously paid the Russia government upwards of $20 million for a trip to the International Space Station. NASA has paid the Russians $80 million a seat to send astronauts to the space station. SpaceX has not revealed the price of the roughly week-long trip.

SpaceX is putting forward an aggressive timeline for the mission, which will rely on a rocket and spacecraft that have not flown yet. The Falcon Heavy rocket is expected to make a test flight this summer. And the Crew Dragon spacecraft, which will hold the two tourists, will complete a demo mission later this year.

Related: SpaceX launches and lands another rocket

"Next year is going to be a big year for carrying people to the space station and hopefully beyond," Musk said in a conference call with reporters.

CNNMoney (Washington) First published February 27, 2017: 4:44 PM ET

http://spaceflightnow.com/2017/02/27/spacex-to-send-two-private-citizens-around-the-moon-and-back/

SpaceX to send two private citizens around the moon and back

February 27, 2017 Stephen Clark

Updated at 6:15 p.m. EST (2315 GMT) with details.

An Apollo astronaut took this image of the Earth above the lunar horizon. Credit: NASA

SpaceX founder and chief executive Elon Musk announced Monday plans to send two paying “private individuals” on a week-long flight around the moon and back to Earth by the end of next year.

Musk said the would-be space tourists approached SpaceX to fly on a mission beyond the moon, launching aboard the company’s Falcon Heavy rocket from pad 39A at NASA’s Kennedy Space Center in Florida and returning to Earth approximately a week later.

“They’re very serious about it,” Musk said, declining to identify the passengers in a conference call with reporters Monday afternoon. He later added the clients include “nobody from Hollywood,” but would not provide details on their backgrounds.

The two-person crew will be trained for emergencies, but the Dragon spaceship carrying them will fly on autopilot, loop around the far side of the moon on a “free-return” trajectory, then speed back to Earth. Musk said SpaceX aims to launch the circumlunar flight in the fourth quarter of 2018.

“This would do a long leap around the moon,” Musk said. “We’re working out the exact parameters, but this would be approximately a week-long mission, and it would skim the surface of the moon, go quite a bit farther out into deep space, and then loop back to Earth. I’m guessing probably distance-wise, maybe 300,000 or 400,000 miles.”

He acknowledged the trip will be risky.

“I think they are entering into this with their eyes open, knowing that there is some risk here,” Musk said of the passengers. “They’re certainly not naive. We’ll do everything we can to minimize that risk, but it’s not zero.”

He declined to say how much the space tourists will pay, but SpaceX said it has already received a “significant deposit” for the moon mission.

“They do know each other,” Musk said of the prospective space tourists. “I don’t want to comment too much on their background, but they certainly will have extensive training before going on the mission, and I also can’t say the exact amount (they will pay).”

The tourists will ride inside SpaceX’s Dragon 2 capsule, or “Crew Dragon,” in development under a $2.6 billion contract with NASA to ferry astronauts to and from the International Space Station. The spaceship is scheduled to launch on its first uncrewed test flight to the station in November, followed around six months later with a demonstration mission to the outpost with two NASA astronauts on-board.

Artist’s concept of SpaceX’s Crew Dragon spacecraft. Credit: SpaceX

SpaceX and NASA plan at least one Crew Dragon flight to the station per year once the spacecraft proves itself on the test flights, rotating in and out four-person crews on six-month expeditions.

NASA contracted with SpaceX and Boeing to develop, test and fly commercially-operated spaceships to transport crews to the station, replacing services currently provided by Russian Soyuz spacecraft.

Russia charged the U.S. government $81 million per seat in the latest crew transportation deal. Boeing and SpaceX have not disclosed their prices for an astronaut ticket to the space station, but NASA says the average cost between the two providers runs about $58 million per person for a round-trip flight.

Musk said the price SpaceX’s moon mission fliers will pay is confidential, “but it would be comparable to a little more than what the cost of a crewed mission to the space station would be.”

Space Adventures, a Virginia-based firm, is the only company to date to arrange for paying tourists to fly into space, brokering eight flights by seven clients to the International Space Station in the 2000s. Other companies, like Virgin Galactic and Blue Origin, offer suborbital trips for paying tourists and researchers, but they have not commenced commercial service.

In 2011, Space Adventures announced a venture in partnership with Russia to send two tourists on a trip around the moon for $150 million per person inside a modified Soyuz capsule, but the mission never materialized.

The Crew Dragon spacecraft is a major upgrade from the cargo-carrying version of Dragon currently flying resupply missions to the space station.

It is already being designed to deep space journeys, Musk said, with an ablative carbon heat shield capable of withstanding re-entry speeds from the moon, which are much faster than descent velocities from low Earth orbit missions.

The robust design of the Crew Dragon supports SpaceX’s long-term objective of Mars missions, with an eye toward setting up a permanent base there and making humanity a “multi-planet species.”

But the Dragon capsule will need new systems for the trip to the moon and back — its first time to fly higher than low Earth orbit — such as deep space communications equipment.

“This would be communication at several hundred thousand kilometers (more than 250,000 miles), as opposed to around 400 kilometers (250 miles at the space station’s orbit),” Musk said. “It’s mostly with respect to the communications system, but Dragon is designed to be hardy with regard to … space radiation and have triple-redundant systems. We feel that the modifications necessary will be quite limited.”

The Dragon spacecraft’s lunar flight will come after it completes test flights to the space station, Musk said.

Artist’s concept of a Falcon Heavy launching from pad 39A at NASA’s Kennedy Space Center in Florida. Credit: SpaceX

The orbital test flights will wring out many of the Crew Dragon’s life support, navigation and computer systems, and Musk said NASA will certify the capsule as “human-rated” once those demo missions are successfully completed.

But the space station crews will blast off on SpaceX’s Falcon 9 booster, not the Falcon Heavy, which is required for the round-trip voyage around the moon. The Falcon Heavy is expected to launch for the first time some time this summer, Musk said, several years later than originally envisioned.

“Dragon 2 is going through NASA human-rating, (and it) will fly with NASA astronauts to the space station before it flies this mission,” Musk said. “The same is true of the Falcon 9 vehicle. The difference is that we’re adding two additional Falcon 9 first stages as strap-on boosters to increase the performance of Falcon 9, which is what we’re calling Falcon Heavy.”

The Falcon Heavy will lift off on the power of 27 Merlin engines, three times the number that power the Falcon 9’s core stage.

“All the pieces of that system will be human-rated by NASA,” Musk added. “One could say that there’s some incremental complexity with the integration of those systems.”

SpaceX will seek a license from the Federal Aviation Administration for the purely commercial tourist trip around the moon, Musk said.

“We should have quite a bit of Falcon Heavy flight history (by the time the lunar mission flies), and, of course, a tremendous amount of heritage coming from Falcon 9 going into Falcon Heavy,” Musk said. “Dragon 2 has been designed to very high standards, so it’s capable of taking a re-entry from lunar entry velocity, with significant margin, so we’re confident that this will be a good vehicle to fly on.”


Spaceflight Now members can read a transcript of the media conference call with Elon Musk. Become a member today and support our coverage.

SpaceX said NASA is a “key enabler” for the commercial circumlunar mission, which would be the first flight by humans to the moon’s distance since the Apollo 17 lunar landing in December 1972, and perhaps the most distant space expedition in history.

NASA said in a statement it “commends its industry partners for reaching higher.”

“We will work closely with SpaceX to ensure it safely meets the contractual obligations to return the launch of astronauts to U.S. soil and continue to successfully deliver supplies to the International Space Station,” the agency said. “For more than a decade, NASA has invested in private industry to develop capabilities for the American people and seed commercial innovation to advance humanity’s future in space.”

While NASA has tapped Boeing and SpaceX to pick up launch and landing services for space station crews, the space agency is working on government-owned vehicles to send astronauts to deep space.

The Space Launch System super-booster and Orion capsule are scheduled to take off on their first combined test flight to lunar orbit late next year, without astronauts. NASA targets launch of a crewed mission conducting a similar lunar flyby to the maneuver planned by SpaceX some time between 2021 and 2023.

SLS/Orion missions to the region around the moon, called “cislunar space,” will validate new propulsion thrusters, power systems, robotics and other technologies required for eventual human journeys to Mars.

The Government Accountability Office reported last year that the first SLS flight in 2018, the first two Orion flights on SLS, and the associated ground systems will cost almost $23 billion. In a separate report last year, NASA’s inspector general said the Orion program will have received $17 billion from its start in 2006 through the first crewed mission in the early 2020s.

But NASA may be about to shake up its human spaceflight program.

The agency is conducting a feasibility and risk analysis, under orders from the Trump administration, to determine the technical hurdles and costs of putting two astronauts on the first SLS/Orion launch, named Exploration Mission-1.

If NASA decides to switch to a piloted mission, EM-1 will likely be delayed to allow engineers to finish development of key life support systems that were not originally intended to fly on the uncrewed test flight. If approved, the EM-1 crew would fly around the moon and back, following roughly the same trajectory targeted by SpaceX’s privately-funded mission.

Musk did not say whether he hopes to fly to the moon before NASA, but he said the space agency will have priority if it wants to take part in the circumlunar flight.

“This will be a private mission with two paying customers, (but) NASA always has first priority,” Musk said. “If NASA decides to have the first mission of this nature to be a NASA mission, then of course NASA would take priority.”

“We’re generally encouraging of anything that advances the cause of space exploration,” Musk said. “I think an SLS/Orion mission would be exciting as well. I don’t know what they’re timetable is, and I’m not sure if we will be before or after, but I don’t think that’s really the important thing. What matters is the advancement of space exploration and exceeding the high-water mark that was set in 1969 with the Apollo program, and just having a really exciting future in space that inspires the world.

“That’s what we care about, and we think that there should more companies and organizations doing this than SpaceX. The more the better.”

Email the author.


  评论这张
 
阅读(330)| 评论(0)
推荐 转载

历史上的今天

在LOFTER的更多文章

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2017