Messenger Issue 168

The Messenger is a quarterly journal presenting ESO's activities to the public. The highlights of this edition published in June 2017 include:

• A Long Expected Party — The First Stone Ceremony for the Extremely Large Telescope
• The Adaptive Optics Facility: Commissioning Progress and Results
• The Cherenkov Telescope Array: Exploring the Very-high-energy Sky from ESO’s Paranal Site
• Towards a Sharper Picture of R136 with SPHERE Extreme Adaptive Optics
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): Science Highlights and Final Data Release

Download The Messenger in PDF format or visit The Messenger website to subscribe and receive a free printed copy.

This Messenger is not available for sale.