Tag: engineering

China’s Chang’e 2 lunar probe, now out of lunar orbit, did a fly-by of the 3 mile wide asteroid Toutatis as it zipped past the Earth last week, resulting in some spectacular images.

2:17 pm

China’s Chang’e 2 lunar probe, now out of lunar orbit, did a fly-by of the 3 mile wide asteroid Toutatis as it zipped past the Earth last week, resulting in some spectacular images.

Launched on October 1, 2010, Chang’e 2 orbited the Moon for 8 months before being redirected last year to the L2 Lagrange point, roughly a million miles on the side of Earth opposite the Sun. But when it left L2 last April, Western observers suspected the spacecraft was heading deeper interplanetary space. It didn’t take long to realize that Chang’e 2 was bound for Toutatis.

This is an example of a very smart re-use of a space probe.

By the way, the first fly-by of another planet took place fifty years ago this week.

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The satellite that North Korea launched early Wednesday appears to be tumbling out of control, according to unnamed U.S. officials.

9:29 pm

The satellite that North Korea launched early Wednesday appears to be tumbling out of control, according to unnamed U.S. officials.

The Defense Department does have the capability to detect a tumbling satellite, especially if its solar panels are visible, though I must emphasize that the information here is so vague it hardly means anything. Regardless, the real issue here is not that North Korea put a working satellite into orbit, but that it now has the rocket capability to put anything into orbit. For us this is not a good thing: A rogue nation that is trying to build nuclear weapons that is also officially still at war with our ally South Korea now has this capability.

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A new New York skyscraper — the largest residential building in the world — has won the top award for 2011 for its unusual undulating facade.

9:08 am

A new New York skyscraper — the largest residential building in the world — has won the top award for 2011 for its unusual undulating facade.

It is worth a look, as the building is quite strange-looking and actually stands out in the New York skyline, something you would think would be difficult for a new skyscraper to do.

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North Korea launched its rocket today, despite indications earlier in the week that they were delaying the launch due to technical problems.

10:06 pm

North Korea launched its rocket early Wednesday, despite indications earlier in the week that they were delaying the launch due to technical problems.

It appears those “technical problems” were a feint to distract everyone just prior to launch. Based on radar data it also appears the rocket did put an object into orbit.

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Glide tests of Sierra Nevada’s Dream Chaser shuttle are now scheduled to begin in the first quarter of 2013.

2:13 pm

Glide tests of Sierra Nevada’s Dream Chaser shuttle are now scheduled to begin in the first quarter of 2013.

The vehicle they will be flying is only a prototype built expressly for these unmanned tests. A separate flight model is under construction and will be used for later manned suborbital tests, followed by a third vehicle built for orbital flights.

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If you and a friend happen to have $1.4 billion, the new private company Golden Spike wants to take you to the Moon.

3:29 pm

The competition heats up: If you and a friend happen to have $1.4 billion, the new private company Golden Spike wants to take you to the Moon.

Golden Spike’s news release said the venture would make use of existing rockets as well as commercial spacecraft that are currently under development to send expeditions to the lunar surface, with the estimated cost of a two-person lunar surface mission starting at $1.4 billion.

There will be a lot of press stories about this. And it is good, as it illustrates again the increasing shift from government-run space missions to a robust private industry. The idea of a private company doing this is no longer considered absurd but perfectly reasonable.

Whether Golden Spike itself will do it, however, is another thing entirely. Please forgive me if I reserve the right to be a little skeptical at this point.

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The Pentagon has decided to buy its launch services from more than just Boeing and Lockheed Martin.

8:49 am

The competition heats up: The Pentagon has decided to buy its launch services from more than just Boeing and Lockheed Martin.

Under the new plan, the Air Force can buy as many as 14 launches over the next five years from possible bidders such as Space Exploration Technologies Corp, or SpaceX, and Orbital Sciences Corp . The service may also buy as many as 36 launches from United Launch Alliance, the Lockheed-Boeing venture, with an option to purchase the other 14 launches if the competitors haven’t been certified to launch military and spy satellites that can cost up to $1 billion each.

Originally the military planned to purchase all of its launches from Boeing and Lockheed. Political pressure from SpaceX has now forced them to widen the competition, or at least, make noises that they are doing so. If you read the above paragraph closely the plan still favors the original two companies and is strongly stacked to hand all the launches over to them anyway.

Update: My pessimism above was premature. SpaceX has been awarded a contract for two launches under this new policy.

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North Korea has placed the first stage of its own rocket on the launchpad in preparation for a test flight later this month.

7:34 am

North Korea has placed the first stage of its own rocket on the launchpad in preparation for a test flight later this month.

Japan, South Korea, the United States, and the United Kingdom (as indicated in the article above) have protested this launch, as well as Russia and China. Interestingly, no one has objected to the South Korea’s effort to build its own orbital rocket, which tells us a great deal about the differences between the two Koreas.

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