Asteroid Watch
Earth from space, with the real asteroids passing by right now trailing past it.
A live, Earth-centred view of the near-Earth neighbourhood: our planet turns slowly at the centre while the asteroids actually passing close to Earth sweep by on glowing flyby trails. With the network permission granted it pulls real close-approach data from NASA/JPL (CNEOS), placing each rock on a path that grazes Earth at its true miss distance and moves at its real relative speed, labelled with its designation, distance in lunar distances and velocity. Close shaves glow red. Dashed rings mark the distance scale, and on a multi-monitor setup you can choose which screen Earth centres on.