Joseph Flasher, University of Colorado:
Research project:
* Constraints on the properties of the massive stars progenitors of the long Gamma-Ray Bursts through time-variable opacities in their environment: the case of GRB 021004.

Kevin Heng, University of Colorado:
Research projects:
* Calculation of time-dependent dust echoes in Gamma-Ray Bursts.
* Determination of the extinction curve in the host galaxies of Gamma-Ray Bursts,

Enrico Bozzo, University of Rome (visitor at Colorado):
Research projects:
* Spin-up/spin-down transitions in accreting X-ray Binaries.
* The propeller mechanism in accreting binaries.

Anna Pietarila, University of Oslo and NCAR (Boulder)
Research project:
* The physics of magnetars and its manifestation in Anomalous X-ray Pulsars and Soft Gamma-Ray Repeaters.

Peter Robinson, University of Colorado
Research project:
* Computation of the rest-frame Ultraviolet Spectra of Gamma-Ray Bursts from massive rapidly-rotating stellar progenitors.

Federico Bernardini, University of Rome (visitor at Colorado)
Research project:
* Spectral and timing analysis of the quiescent state of the Anomalous X-ray Pulsar XTEJ1810-197.