... Astrophysics Group . Research . Star Formation . ... Cosmic Microwave Background (CMB) . ... Galaxy Formation and Evolution . ... In particular, we study the supersonic jets ejected during the star formation process, and the accretion disks surrounding the protostars which allow the stars to grow in mass and in which planets are believed to form. ... Members of the group are also investigating the nature of star formation on galactic scales ? see the pages of the Galaxy Evolution group. ...