Astrophysics resources

NASA Extragalactic Database
Returns all catalogue matches for a galaxy, given its position also lists observations from the literature

VizieR
An online catalogue search tool

CDS
A repository of downloadable catalogues

Cosmology Calculator
A conversion tool between distance and redshift for standard Λ-CDM cosmologies

Science news

NASA's Astronomy Picture of the Day

NASA Science News

NASA SpaceWeather Site

The latest EUMETSAT image for central Europe

Space science news from Heavens Above

Science opinion

Sustainable Energy Without The Hot Air
An online about the UK's future energy needs by the late David MacKay

Astronomy organisations

The Royal Astronomical Society

The American Astronomical Society

The Society for Popular Astronomy

The British Astronomical Association