Friday, February 29, 2008
                                                   						New (though unnecessary) Planetary Mnemonic
                                                   During the "is Pluto a planet?" discussion a couple years ago, for a moment it looked like there were going to be 11 planets.
                                                       Ceres, the largest asteroid and Eris, a spherical 
Kuiper Belt object were going to be added to the mix.  The problem is, it's likely that there are many other objects out there which
                                                      would fit the criteria of 'planet' by those standards.  We'd eventually have something like 500 planets to remember.  In my
                                                      opinion, saner heads prevailed and the new category 'dwarf planet' was created.  So now we know of 8 planets and a few 
dwarves, with more to come.  Oh, and in the vein of 'a protest for every cause', if you have strong feelings about Pluto's 'demotion',
                                                      you can always go 
here.
                                                      
                                                      Apparently, during the short time where there were to be 11 planets, National Geographic put out a call for a new memory-jogger
                                                      for kids to remember their planets by.  A girl from Montana 
won with this entry:
My Very Exciting Magic Carpet Just Sailed Under Nine Palace Elephants
Cute, but overcome
                                                      by events.  Looks like it's all part of a publicity campaign for a new book.  Too bad it's spreading confusion about our solar
                                                      system in the meantime.
                                                      
                                                      Note:  When I 
posted on this a few years ago, Eris hadn't been named.
                                                   
                                                   					
                                                   						
                                                   Tuesday, February 26, 2008
                                                   						No Joy in Mudville
                                                   The Planetary Society announced 
results of the Apophis Design Competition.  My team is conspicuously absent from the awardees.  Congrats to the winners, and the
                                                      important thing is that we get more involved in this effort.
                                                      
                                                      I'll be posting details on our submitted design soon.
                                                   
                                                   					
                                                   						
                                                   Friday, February 22, 2008
                                                   						Update on MSL and MSR
                                                   Mars Science Laboratory (MSL) and Mars Sample Return (MSR) are discussed in this 
article in Av. Week.  MSL looks like the budget will top $2B, and they'll know in the next 100 days whether a launch in 2009 is possible.
                                                       MSR has $68M earmakred for it so far, though the expected cost of the US portion is $3.3B.
                                                      
                                                      I wish this were cheaper and easier.  I believe it can become both.
                                                   
                                                   					
                                                   						
                                                   						Another old Warhorse, Nearing End-of-life...(?)
                                                   Apparently, the 
Ulysses spacecraft is experiencing some difficulties related to a decrease in power production.  JPL put out a 
press release about it.  The question mark in the title relates to the fact that they're having trouble with their X-band transmitter,
                                                      one that gives us some problems on Landsat 5.  Maybe some crosstalk will help...
                                                   
                                                   					
                                                   						
                                                   Thursday, February 21, 2008
                                                   						The Moon Turned to Blood...
                                                   Almost missed the eclipse last night.  I was working late, and the sky was cloudy at ~8pm, so I thought we were toast.  My
                                                      mom called at 9:20, saying she was looking at the moon.  I went outside and the skies were crystal clear.  'Ol Luna put on
                                                      quite a show.
                                                      
                                                      I thought all the talk of 'no more total lunar eclipses until 2010' referred to viewers in the Continental United States,
                                                      but according to 
Mr. Eclipse, it's for the whole world.
                                                      
                                                      Be sure to mark your calendar for the 
2017 eclipse in the heartland of the US.
                                                   
                                                   					
                                                   						
                                                   						Gotcha!
                                                   Looks like the DoD is claiming 
success in the impact of USA 193.  Details will come over time.  One quibble with the article: it looks like the meme of when the
                                                      US did this before has morphed to the year 1989.  A friend of mine confirmed that the satellite he was working on (
 SolWind ) was hit in 1985.  
Wikipedia concurs.  
                                                   
                                                   					
                                                   						
                                                   Tuesday, February 19, 2008
                                                   						Problem Solved?
                                                   Went out again tonight to see USA 193, and it didn't show while I was looking.  That means either bad position data (ephemeris)
                                                      at Heavens-above (a first that I've seen, though I haven't used them for much other than spotting the ISS), or the satellite
                                                      entered the atmosphere and ended all debate.  I'm leaning towards bad ephemeris because it gets a lot harder to predict as
                                                      there's more atmospheric drag.  I would have stayed out longer, except that a decaying satellite moves faster (long story
                                                      on that one), so I would have been too late to start.
                                                   
                                                   						9:19 pm est
                                                   					
                                                   						
                                                   						It's a bird, it's a Plane,
                                                   It's 
USA 193!  I took the kids out last night to see the wayward satellite.  It was obviously moving faster than a 'normal' orbiting object
                                                      such as the ISS, which makes sense since USA 193 is in a much lower orbit.  If you want to see it in your neck of the woods,
                                                      find your location at 
Heavens Above, and look for the brightest objects to pass by that night.  You may have to hurry, though.  According to 
CNN, they're gonna try to "shoot it down" on Thursday.  Discussion on why shoot it down is in quotes can be found 
here.
                                                   
                                                   					
                                                   						
                                                   Saturday, February 16, 2008
                                                   						Dead Sea, Dead Mars?
                                                   A new 
press release from JPL says the Mars rovers findings indicate that the ancient water on Mars (that they've discovered) was very salty.
                                                       This "sharpens" the question about whether or not life could have existed there, since the 
Dead Sea has very limited life within it.  Of course, the fact that two rovers landed in places where very salty water existed doesn't
                                                      mean that the water was very salty everywhere on the planet, but it does increase the odds that all the water was salty.
                                                   
                                                   					
                                                   						
                                                   Sunday, February 10, 2008
                                                   						Flying Again
                                                   Atlantis got back into space on Thursday.  Looks like all went well except for the mandatory minor glitch for the news
                                                      to obsess over throughout the mission.  Internet restrictions in my workplace that day limited my following the event to web-posted
                                                      updates and NASA-updated stills.  The 
sick spacewalker story is also drawing some attention ("What?  We're not entitled to the specifics of a crewmember's illness?").
                                                   
 
                                                   						10:45 am est
                                                   					
                                                   						
                                                   Wednesday, February 6, 2008
                                                   						DSS and ITV Analysis
                                                   The aside in the previously-mentioned Av Week article talks about two spacecraft necessary for near-Earth and interplanetary
                                                      missions proposed by Robert Farquhar.  They are:
                                                      
                                                      The Deep Space Shuttle (DSS), with:
- A service module with chemical propulsion.  Four people could live in it for 50
                                                      days.
- Detachable return capsule
- Methane/LOX propulsion system (365 sec Isp)
- Drop tanks
- Delta-V capacity of 5-6
                                                      km/sec
The Interplanetary Transfer Vehicle (ITV), boasts:
- Crew module aple to support 5-6 people for up to three
                                                      years
- Propulsion module - no dV mentioned, though the potential for nuclear propulsion is mentioned
- Detachable capsule
                                                      like the DSS
Hope no one is really worked up for the analysis on this, 'cause I gotta get to bed.
                                                   
                                                   					
                                                   						
                                                   Tuesday, February 5, 2008
                                                   						Reason to Read the Hardcopy
                                                   Earlier, I commented on an Aviation Week article talking about the people meeting soon to discuss alternatives to the current implementation
                                                      of the Vision for Space Exploration (I know, according to the memo, I'm supposed to call it something else...).  Today, I
                                                      found the actual magazine around the office, and discovered a text cutout describing a mission to asteroid 
1999 AO10 using a space unit called a Deep Space Shuttle, in acronym speak, that's the DSS.  The writeup is kind of interesting, and
                                                      I'll write a bit about it soon.
                                                   
 
                                                   						9:35 pm est
                                                   					
                                                   						
                                                   Monday, February 4, 2008
                                                   						More Bigelow Numbers
                                                   Here's a Space.com 
article about upcoming Bigelow Aerospace plans.  The launch rates they're talking about are a lot higher than the 
Atlas V would have otherwise.  They say the method of carrying people has yet to be decided.  I suppose that's for another press
                                                      release.
                                                   
                                                   					
                                                   						
                                                   Sunday, February 3, 2008
                                                   						Slow News Day
                                                   A sure sign of a slow news day is a 
front page article on space in the Washington Post.  Of course, Saturday starts out slow.
                                                      
                                                      The article gives a pretty good summary of the current state of affairs, and mentions the upcoming 
conference about alternatives to the Vision for Space Exploration, which apparently is being 
renamed  as the United States Space Exploration Policy (page down to the Feb 1 1:11pm entry).  I guess policy sound more official
                                                      than vision.