eso, european organisation for astronomical research in the southern hemisphere

the space telescope science institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives.

welcome to the home of the national radio astronomy observatory online.

nsf’s national optical-infrared astronomy research laboratory (nsf’s noirlab) is the preeminent us national center for ground-based, nighttime optical and infrared astronomy

this encyclopaedia provides latest detections and data announced by professional astronomers about exoplanetary systems. it is about objets lighter than 60 jupiter masses, which are orbiting stars/brown dwarf or are free floating. it provides also a database about planets in binary systems, and a database about circumstellar disks.

embark on a journey of discovery with the hubble space telescope.