Recent content by mcswell

"Kepler noticed that the farther Mars was from the sun, the more slowly the planet moved, and the closer it was to the sun, the faster Mars moved along its orbit. ... Brahe and Longomontanus... were geocentrists and dismissed Kepler's Copernicanism." Assuming that "closer to the Sun" means...

The slopes look very steep. What, if anything, is the vertical exaggeration?

C'mon, FAA, the Senate Launch System already launched, so there's no political reason to delay the certification for the bigger and better Starship any longer.

Wait, 14 billion years isn't enough? :)

Yes, a cherry red one. Should be easy to detect based on the spectrogram!

I should have said upper stage. A year ago, J002E3 turned out to be the Saturn IVb stage from Apollo 12 in an interplanetary orbit (and temporarily re-captured by the Earth).

Given how close its perihelion is to Earth's orbit, any chance this is actually an old booster? If it were > or < white, as most such boosters were, it could be considerably smaller than the estimated 4 to 8 meters.