Particle physicists do it energetically. Particle physicists to it with charm. Aerodynamicists do it in drag. Astrophysicists do it with a Big Bang. Astronomers do it all night.
Astronomers do it in clusters.
Astronomers do it on mountain tops. One to do it and ten to co-author the paper. None, astronomers prefer the dark. They are not interested in that short wave stuff. One holds the bulb, while the other rotates the universe.