Ares 1-X Launches

Ares 1-X successfully launched on October 28. This sub-orbital mock-up tested the avionics and mechanics of a simulated Ares SRB -- A 4 segment shuttle SRB was used with a dummy fifth segment on the top of the stack. The remainder of the rocket was basically an empty shell, save for the roll control in the upper stage. All in all, everything went as planned. There are at least 2 more flights planned that will incrementally test the Ares design, ending with an unmanned orbital flight in the far future.

BLAM!

LCROSS hit the moon with a bang, with stunning results. Mostly because so many of us were expecting a more impressive show and were stunned by the puff of white we might or might not have seen. Still, the LCROSS team were able to locate the Centaur stage impact event in their imaging stream and are happy so far with the returned data -- which is still being analyzed. Hopefully important data will soon be streaming out of NASA Ames.

One should keep in perspective the cost of this project. The LCROSS mission was in some ways a "freebie", since it was a bit of extra hardware sent up with the Lunar Reconnaissance Orbiter. LRO is still on-going. The Centaur stage 'impactor', was part of the original rocket launch and the LCROSS plume detection satellite started out as a secondary payload adapter/spacer ring, sitting between the Centaur stage and the LRO spacecraft. So except for ground control and the bits of off-the-shelf hardware added to the spacer ring, LCROSS was nearly 'free' -- as 'free' as spacecraft can ever be.

The Passage of Time

It's been a profoundly long while since I've posted anything on this blog. Sorry for the hiatus. Sadly, not much is happening that has got my attention. I am happy to see the ISS putting up more astronauts (six, as of May 29). I'm sorry to hear that the Russians are going to curtail future tourist trips to ISS. On the other hand, this gives SpaceX an opportunity to fill that void. Elon Musk has said his rockets were designed with Man-rating in mind. Assuming SpaceX will be successful in the next few years, where are the tourists to go? Hopefully Bigelow is gearing up to supply the tourist venue.

And one more thing... kudos to SpaceX for their first commercial satellite success, the Falcon-1 launch of Malaysia's RazakSAT. Now they have proven that they can make money.

And a One More Time...

North Korea reports that they have again detonated a nuclear weapon of about 10 to 20 kt. The magnitude earthquake created by the blast was initially reported as a 5.3 magnitude earthquake (90kt), but was downgraded to a 4.7 magnitude (11.3 kt). For what it's worth, one kiloton of energy is liberated by a 4.0 magnitude earthquake and the converse, a 1 kiloton underground blast will cause a 4.0 earthquake, is roughly true. To calculate the approximate yield of a blast from the resultant earthquake, you have to remember that each increase of one point of the Richter scale is a 32 fold increase in energy. If a 4.0 earthquake is 1kt, a 5.0 earthquake is 32kt, and so on. The formula for yield is thus the following:


yield(kt) = 32^(eq magnitude - 4.0)


So there you have it.

A Shot in the Dark

I saw a flash in the night sky Sunday at around 0525 UTC. The rough location was between Arcturus and the front foot of Ursa Major, if you're familiar with the H.A.Rey star maps. After a little research, I conclude that it was pretty much in the direction of the Messier globular cluster M3. I only caught it for a fraction of a second out of the corner of my eye, it was blue white, and it was about twice as bright as Sirius. I also live in Hollister California, with lattitude/longitude coordinates of roughly 37.82N and 121.37W. Anyone have any ideas?

Friday Fun: Guess the House

It's Friday, and I decided to add a contest. Here's the rules -- figure out what person used to own this house. He was a space colonization advocate long long ago (mid-twentieth century). This factoid and the picture above are your only clues. Good Luck...

Searching for Life from On High

I have been meaning to write this entry for a long time. Since the discovery that Saturn's moon Enceladus has active liquid water geysers, people have speculated that life might be present there, and follow up missions to Cassini have been proposed to perhaps go to Enceladus and see what, if anything, is living there. But apparently, anything that is sent to Saturn will set back a space agency something on the order of a billion dollars, so don't expect anything soon.
That said, I tend to think that a low-level Enceladus orbiter could do a lot of good. The orbital velocity around Enceladus is a measly 500 mph or so, the speed of a commercial jet liner. Compared to a 10,000 mph flyby, whatever life might smack into the windshield of the low-level orbiter would have a far better chance of remaining intact.

So my mission plan would be to fly a spacecraft to Enceladus, put out a scoop while orbiting the moon for a while (6 months, a year, or until the target is nicely loaded with ice) while simultaneously taking lots of pictures and engaging in other experiments, seal up the target, drop off all the extraneous instrumentation, and fly back to earth. I admit this idea glosses over how to get to and get back from Enceladus in the first place, but that's the plan. NOTE: The mission price could be dropped substantially by adding a lab to the spacecraft, but in past NASA missions life detection gear on the spacecraft has always returned mixed results. It makes one wonder if NASA is really all that keen about discovering alien life.

Speaking of smashed bugs on the windshield, one might be able to do a Mars sample-return mission without actually going to Mars. The theory being that if Earth has been pummeled with the occasional martian meteorite, the Phobos and Deimos have been inundated with them. The Phobos-Grunt sample-return mission, will likely be picking up pieces of Mars as well as pieces of Phobos. The tricky bit will be sifting through the pieces and deciding which bits are Mars and which bits are Phobos. I imagine in some places they may need to dig down through a fair bit of Mars material just to reach the pristine Phobos bits underneath.