Space exploration and development – more than numbers
"I think it’s fair to say that our review group drew the short straw, and I drew the shortest by having to actually do this presentation." Sally Ride, 2009 Dr. Sally Ride at the 2009 Review of Human Space Flight Plans Committee. It is August 2009, and Sally Ride is about to present charts about … Continue reading Drawing the short straw
On my shelves sits a childhood book “Planets and Spaceflight,” published in 1957 by General Mills. The front cover is “Planets,” and the rear is “Spaceflight,” full of vivid descriptions and beautiful artwork of the many places to go and how we will get there. The publisher is best known for Cheerios, so I’m sure … Continue reading What’s old is new again – more on refueling in space
Range anxiety was invented by NASA. Well, perhaps not (or Velcro), but space exploration gives new meaning to an obsessive awareness of how much further you can go when there is no charger on every corner. Now imagine that feeling if you are in outer space or back on the ground watching your spacecraft, not … Continue reading The rise, fall and rise again of refueling – in space
Iconic orange Space Shuttle External Tanks and shiny SpaceX Starships are uncannily close in scale. I was fortunate to be on the team in the 1990s that checked out and prepared the External Tanks and then on the team that filled and launched them. I could not have guessed that 23 years into my career … Continue reading Of external tanks and Starships
There is an oddity to the International Space Station, its name – a station. On Earth this would be fine, a station, as in stationary, not moving. In space, though, “station” is a bit of a misnomer for a facility going once around the Earth every 90 minutes and traveling 15,500 miles per hour. Pictures, … Continue reading It’s not what it looks like – the cost of ISS per year
The room filled with the usual suspects and small talk. This year, it seemed an unwritten rule that before any presenter could talk about their good work there came this particular chart. It was the late 1990s, exciting times when ever-faster computers, internet connections, and aerospace technology came together to spur dreams of things to … Continue reading You can’t always get what you want, but…
The same human who helped create the AI had only one task at this moment, move the stone to its place on the board as the AI instructed. The move would seem to be a bad move, except later, when it appeared the AI was playing in a way we humans could learn from. This … Continue reading I’m with the AI, and I’m here to help
I was walking under a beached whale, and inside it, and around, the dangling entrails smacking me in the face, an amateur mistake. I should have known how to move around flight hardware carefully. It was early 1999, and the X-33 was taking shape. With its internal rib-like frame, platforms, curved supports, cables holding all … Continue reading X-33 – the middle path?
The choice was made, so the outcome was determined if not known. In engineering as in life. Not everyone accepts this notion quite the same way or as gospel. Making a choice and living with a determined, if unknown, future sounds fine in theory. In practice, though, determined leads to deterministic. As in destined. Fate. … Continue reading Reusability – legs and fins or wings and things?
It's about the benefit when the mass is there, versus not. The socket cost $5,000. But we got a good deal for three at $15,000. This might sound like just another story about a $300 toilet seat, but there may be some rhyme or reason behind $300 toilet seats. Or even $10,000 toilet seat covers. … Continue reading The case of the $5,000 socket
A launch failure is a visual event for all to see; a program’s failure to meet cost, flight rate, or other fuzzy goals - not so much. With an odd hardware failure, some unit gone bad, engineers might do a hybrid of Monday morning quarterbacking and applicable anecdotes. Of course, there is methodical troubleshooting, too. … Continue reading Commercial space and six questions for a good story – Pt. 3 of 3 (wonkish)
It’s a struggle not to write or talk in NASA-speak, a bad habit picked up from years of intensive training. Even with the name I chose for this writing space, plain English must rule. Still, before the next post picks up where I left off, here is an aside on how we laughed at some … Continue reading The flow managers glossary
First, there was a forest, then just a smattering of trees, and finally, just this one tree. On a specific day, at a specific time, someone came to the last tree. Maybe they paused. Then they chopped it down, too. This is a version of the tragedy of the commons, a parable where incentives create … Continue reading Commercial space and six questions for a good story – Pt. 2 of 3 (wonkish)
In 2006 NASA went down a rather new path to get cargo to the International Space Station. No one could have imagined the end was so near for the dogma of space exploration as an expensive, exclusively government affair. Suddenly, getting cargo to the ISS meant inside baseball lingo about firm fixed price contracts and … Continue reading Commercial space and six questions for a good story – Pt. 1 of 3 (wonkish)
The reward is everyone's ability to go further. It’s not every day you are told your choices are not yours alone. Last year’s 2020 Space Council report did just this. NASA’s deep space exploration and the US commercial space sector are linked. The report was clear, a commercial space economy is “necessary” for NASA’s deep … Continue reading NASA’s human spaceflight strategy, sustainability and growth
Zapata Talks NASA 