What speed to shoot stars at?
140781
What times and settings should I use for taking pictures of stars at night and falling stars?
157805
How do I use the different shutter speeds my camera offers?
24
Projectiles and escape velocity
41250
Speed of object towards a point not in the object's trajectory?
20711
How can I avoid star trails without an expensive tracking mount?
57773
About the speed of light and gravity
89837
Speed of light when accelerating
27359
Gravitational slingshot maximum
2331
How fast does gravity propagate?
13268
Shoot, Shoot At
46510
Relativity and Galaxy Rotation Speed
76612
How do I capture the milky way?
116515
How do you aim the Starkiller weapon?
134813
How to lead a moving target from a moving shooter
158216
Does warp drive permit safe, near- or above- lightspeed travel through atmospheres?
90740
Ping faster than light
12267
(Almost) double light speed