@neiltyson Hi Neil. You did a talk radio show a while back regarding aliens and that you needed to be able to capture one. This is so at least it wouldn't based on purely human experience. With planetary objects light years away, aliens would have to be able to travel faster than light.
@neiltyson I trust scientists since they derive conclusions based on evidence. When your parent or child dies due to covid, the only question would be would a mask have made a difference! If a mask can reduce the probability of infection, why not, no guarantees in life.
@RealBurrows@neiltyson How do you travel between points A & B in space which are hundreds if not thousands of light years apart, eliminating Speed as a factor in travel?