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This Letter reports observations of an event that connects all major classesof solar eruptions: those that erupt fully into the heliosphere versus thosethat fail and are confined to the Sun, and those that eject new flux into theheliosphere, in the form of a flux rope, versus those that eject only newplasma in the form of a jet. The event originated in a filament channeloverlying a circular polarity inversion line (PIL) and occurred on 2013-03-20during the extended decay phase of the active region designated NOAA12488/12501. The event was especially well-observed by multiple spacecraft andexhibited the well-studied null-point topology. We analyze all aspects of theeruption using SDO AIA and HMI, STEREO-A EUVI, and SOHO LASCO imagery. Onesection of the filament undergoes a classic failed eruption with cool plasmasubsequently draining onto the section that did not erupt, but a complexstructured CME/jet is clearly observed by SOHO LASCO C2 shortly after thefailed filament eruption. We describe in detail the slow buildup to eruption,the lack of an obvious trigger, and the immediate reappearance of the filamentafter the event. The unique mixture of major eruption properties observedduring this event places severe constraints on the structure of the filamentchannel field and, consequently, on the possible eruption mechanism.

An Observational Study of a "Rosetta-Stone" Solar Eruption