A good op-ed from Donald Robertson. He’s saying things that have been obvious for years, but that too many people pretend aren’t the case.
Category Archives: Space
Virgin Orbit
…might be on its last legs.
NASA’s Safety Culture
Twenty years after Columbia, is it fixed?
LEO Satellites
How low can they go?
The good thing about those altitudes is that unless there is active maintenance, their orbits won’t be long lived.
Hail Columbia
Hard to believe it’s been two decades now. Of the three tragic NASA anniversaries, this was the only one that occurred after I started blogging. Here‘s what I wrote about it at the time. Posts are in reverse chronological order, so scroll to the bottom and work your way up.
Starship Performance Update
Wow.
The Anniversary
Thanks for the birthday wishes. Here is what I wrote in 2010 about Challenger.
[Update a while later]
On the thirtieth anniversary, there were still lessons to be learned. In fact, many remain to be learned today, on the thirty-seventh.
After Ten Years
Wayne Hale has been reposting his remembrances of the loss of Columbia.
Rubble Piles
Asteroids may be a bigger problem than we thought.
One thought: Weave a giant net out of space-sourced materials and consolidate it, then tow with a gravity tractor. Or hell, a gravity tractor would probably work without the net.
Artificial Gravity
Last week’s Beyond Earth Institute seminar is on line.