Messenger Issue 155

The Messenger is a quarterly journal presenting ESO's activities to the public. The highlights of this edition published in December 2013 include:

• The calibration of ALMA using radio sources
• The VIMOS Ultra Deep Survey: 10 000 galaxies to study the early phases of galaxy assembly at 2 < z < 6+
• Laser Guide Star Facility upgrade
• When VLT meets HST: The HUGS survey
• Celebrating 50 years of ESO in Chile

This Messenger is not available for sale.