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  • Differential Geometry
    Best visualization of SO(3)
    I know a decent number of properties of SO(3) and obviously I can visualize the group action on three space as rotations. But a good visualization of the group itself eludes me. SU(2) is somehow more intuitive to...
  • Astronomy, Astrophysics, Cosmology
    Where are Voyager and Pioneer heading?
    Hello, I've been looking at this paper... https://arxiv.org/pdf/1912.03503 Future Stellar Flybys of the Voyager and Pioneer Spacecraft ...to get a better handle on where these four probes are heading, at a basic...
  • Aerospace Engineering
    SpaceX starts operational Starship launches
    Based on air traffic coordination Edit: Also as FAA advisory now SpaceX should release a flight plan soon but we can expect a ~250-350 km circular orbit with a booster splashdown near the launch site. It will then...

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