Cheap Astro Archive
Mar 31st: Unusual Orbits
Mar 23rd: Free Fall To A Center Of Mass
Falling, as little as possible. Today @cheapastro will answer: How long would it take an object to fall into the Sun from one light year away and talk about the principle of least action
Mar 10th: More Robots on Mars
Feb 9th: Back To Basics
In the gutter, looking up at the stars. So the water came from asteroids now? And what are the Voyagers learning about interstellar space?