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notovny

For you the cosmic microwave background was emitted thirteen and a half billion years ago. For this neutrino, it was Tuesday.

Draim Tetrahedral constellation

Dream a little Draim with me.

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40 Is there a self-rounding celestial body from which an Olympian could jump into space? Jan 22
23 Why do many Mars missions launch now, if the Hohmann transfer orbit is the most propellant-saving one? Jul 25
8 If someone built a vacuum tunnel through the atmosphere, could you have an orbit with a sea level perigee? Jul 14
6 Delta-v penalty for stopping in a distant Earth orbit versus using atmospheric reentry for braking and returning to Earth from Mars? Jul 4
6 Why is the bend angle of a hyperbolic trajectory giving different results? Mar 31
5 Besides hyperbolic flybys, what are all the other cases where the Oberth effect can be used? Oct 1 '19
5 How will JWST maintain its elliptical orbit around L2? Jan 11 '19
4 Has a probe ever been lost due to folding its antenna, making it unable to communicate? Aug 17
4 Calculate flight path angle given semi-major axis, eccentricity and distance from the focal point May 4
3 How can you determine the nature of an object from its flight path angle, velocity, and radius alone? Jan 20
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