A range of high-quality resources for Physics and Astronomy are available on the web. Click here for Physics subject specific resources.

Study guides/aids

• Astronomy Center: Links to a wide range of teaching and learning resources, classified by topic and activity type. 
• UK Students for the Exploration and Development of Space: The UK's national student space society and charity. Supports students across the UK by running space projects and hosting conferences and workshops.

Observational astronomy

• Astronomy Picture of the Day: A different astronomy image or photograph each day, accompanied by a short explanation written by a professional astronomer. Index, archive and search function available.
• Heavens Above: Website with satellite and astronomy data, including an interactive sky chart.
• Hubble Site: Official site of the Hubble Telescope, provides news and data.
• Lunar Orbiter Photographic Atlas: Digital archive of the images contained in Bowker and Hughes, Lunar Orbiter Photographic Atlas of the Moon(1971). 
• The Mikulski Archive for Space Telescopes (MAST): NASA funded projects which brings together datasets in the fields of optical, ultraviolet, and near-infrared parts of the spectrum.
• European Space Agency: The European Space Agency website. Includes much audiovisual material and ESA publications.
• NASA: The official website of the National Aeronautics Space Administration. Regular news and data. A number of e-booksare freely available covering lots of fields connected to the work of the ISS space station.
• Sky and Telescope: Wide range of astronomy resources, including an interactive sky chart which covers any date from 1600-2400 (this feature requires free registration and JAVA).
• The Sloan Digital Sky Survey (SDSS): Provides three-dimensional maps of the universe, with multi-colour images of one third of the sky, and spectra for more than three million astronomical objects.
• Spaceweather.com: Site concentrating on solar activities and its interaction with Earth.

Cosmology

• Cosmic Journey: Follow the history of cosmology from the Greeks to the future. Created by American Institute of Physics.
• Cosmology and Relativity: Find out what research Queen Mary is currently running in terms of cosmology.
• The Origin, History, Evolution & Future of the Universe: Interactive report discussing the origin, history and evolution of the universe created by the staff at Space.com.
• Universe in problem: Over 2000 answers to cosmology problems.

International and national agencies/governmental departments

• CDS: The astronomical data centre at Strasbourg; hosts the SIMBAD astronomical database.
• European Space Agency: The European Space Agency website. Includes much audiovisual material and ESA publications.
• NASA: The official website of the National Aeronautics Space Administration. Regular news and data. A number of e-booksare freely available covering lots of fields connected to the work of the ISS space station.

Information portals

• Astroweb: Database of astronomical internet resources, maintained up to 2010.
• Science Reference Service – Astronomy: A comprehensive guide to astronomical websites curated by The Library of Congress.

Observatories & museums

• Peter Harrison Planetarium
• Royal Observatory Greenwich

Professional organisations

United Kingdom

• The Astronomical Society of Edinburgh
• The British Astronomical Association
• Cardiff Astronomical Society
• The Royal Astronomical Society

International

• American Astronomical Society (USA)