Welcome to the Herschel Science Archive

Herschel was the fourth cornerstone in ESA's Horizon 2000 science programme, designed to observe the 'cool' universe. It performed photometry and spectroscopy in the poorly explored 55-670 µm spectral range with a 3.5 m diameter Cassegrain telescope, providing unique observing capabilities and bridging the gap between earlier infrared space missions and groundbased facilities. Herschel successfully performed ~37000 science observations and ~6600 science calibration observations which are publicly available to the worldwide astronomical community through the Herschel Science Archive.

The Herschel Science Archive offers access to:

• science data products automatically generated by the data processing pipelines (at various - user selected - levels)
• interactively reduced data provided by the community (User Provided Data Products; UPDP) and by the mission experts in the Herschel ground segment (Highly Processed Data Products; HPDP)
• publications linked to the data
• preview images and connectivity to common astromonical tools over Virtual Observatory (VO) protocols