First, an amateur astronomer discovered a mysterious flux of energy on the surface of Venus. Then another amateur astronomer spotted the aftermath of a small asteroid or comet striking Jupiter's atmosphere. Now the Cassini orbiter has returned a spectacular image of the effect of an unknown body plunging through the underside of Saturn's F ring. The bright peak is ring material dragged beyond the ring-plane by the impact; the dark line stretching away at an oblique angle is the shadow of the peak cast across the F ring, stretched a long way out because Saturn is almost at equinox, with the ring system at right angles to the sun.
At one point in The Quiet War, a combat spacecraft plunges through Saturn's rings. I never thought that I'd be able to see what it would look like in real life . . .