Thus a purely spherical shape might approximate to a parabola at low angles but would remain a not-very-good antenna because of the relatively small usable area of the sphere it would present.

The low-mass Main Asteroid Belt model in which Mars had very little material in its vicinity from which to grow larger in mass. The early instability model in which the early inner solar system ...

A team of Australian researchers has proposed an instrument called ODIN (Optomechanical Dark-matter Instrument) that can allow scientists to directly detect low-mass dark matter. “Unfortunately ...