  We present new sub-arcsecond-resolution near-infrared polarimetric imaging
and millimetre interferometry data on the circumstellar disk system in the Bok
globule CB26. The data imply the presence of a M > 0.01 M_sun edge-on disk of
>400 AU in diameter, being in Keplerian rotation around a young ~0.35 M_sun
star. The mm dust emission from the inner 200 AU is highly optically thick, but
the outer parts are optically thin and made of small dust grains. Planetesimal
growth in the inner disk could neither be comfirmed nor excluded. The outer
optically thin part of the disk is strongly warped. We argue that the CB 26
disk is a very young protoplanetary disk and show that it is comparable to the
early solar system.
