| SFA_Mast_Arboretum Arboretum of Steven F. Austin University, Texas. Information on the conservation, evaluation, and use of the native plants of the state. |
| Shangri_La_Botanical_Gardens_and_Nature_Center Includes history, photos, volunteer opportunities, and children's section. Orange, Texas, USA. |
| Soekershof_Walkabout Soekershof Walkabout portrays the spiritual diversity of South Africa in mazes, a cactus labyrinth, a philosopher's garden, and other gardens containing more than 1500 succulent plants and unique indi |
| South_Carolina_Botanical_Garden Information about activities and programs, virtual garden. Located in Clemson. |
| The_State_Botanical_Garden_of_Georgia Preserve with nature areas and trails. Includes maps, information about the collections, calendar of events, membership information, and volunteer opportunities. Athens, Georgia, USA. |
| Staten_Island_Botanical_Garden Virtual tour features the Chinese Scholar's Garden. Educational programmes, visitor information. Staten Island, NY, USA. |
| Summerland_Ornamental_Gardens A 16-acre public garden above Okanagan Lake with irrigated and xeriscaped areas, collections of penstemons, irises, roses, and a museum of antique scientific equipment. Summerland, British Columbia, C |
| Tofino_Botanical_Gardens A gateway to the natural and cultural histories of Clayquot Sound Biosphere Reserve. Virtual tour, visitor information. Vancouver Island, BC, Canada. |
| Tucson_Botanical_Gardens Horticultural and ecological education. The garden encourages responsible environmental stewardship, and provides a setting for enjoyment, relaxation and renewal for residents and visitors. Tucson, A |
| United_States_Botanical_Garden The oldest continually operating botanic garden in the United States. Site offers background, event information, gift shop, and related links. Washington, DC, USA. |
| The_United_States_National_Arboretum Overview, events and education programs, specialty gardens and horticultural practices, research, support opportunities, and site search. |
| University_of_Arizona_Arboretum History, how to get involved, calendar of events, and information about student projects. Tucson, Arizona, USA. |
| University_of_British_Columbia_Botanical_Garden_and_Centre_for_Plant_Research The web site of Canada's oldest university botanical garden. Current research themes include conservation, evolution (including molecular systematics), genomics (including the evolution of plant devel |
| The_University_of_California_Botanical_Garden Diverse collections are grown on a hilly site overlooking the Berkeley campus, near the San Francisco Bay. |
| University_of_California,_Santa_Cruz_(UCSC)_Arboretum The Arboretum occupies one of the most propitious horticultural sites in the world, part of the holdings of pioneer Henry Cowell. Climatic and topographic diversity allow experimentation with amost ev |
| University_of_Connecticut_Conservatory The department of ecology and evolutionary biology presents the greenhouse facilities, visiting information, research capabilities, and an index to basic data sheets for many of the plant holdings. |
| University_of_Delaware_Botanic_Gardens Virtual tour, volunteer and internship information. |
| University_of_Oxford_Botanic_Garden The oldest botanic garden in Britain. Contact and visitor information. Oxford, UK. |
| University_of_South_Florida_Botanical_Garden Plant displays, research, and education, representing and interpreting the diversity of the Earth's plant life for the academic community and the general public. Horticultural workshops and special pl |
| University_of_Washington_Medicinal_Herb_Garden A resource for herbalists, medics, and botanists. Hypertext tour and partial catalogue. Seattle, WA, USA. |
| University_of_Wisconsin-Madison_Arboretum Includes photos of the Arboretum's native Wisconsin habitat restorations and Longenecker Gardens, seasonal events calendar, Naturalists' Notes, Earth Partnership for Schools (ecological restoration), |
| VanDusen_Botanical_Garden Information on operating hours, show schedules and seasonal exhibits. Vancouver, BC, Canada. |
| Warsaw_Biblical_Garden Religious themed botanical garden and public attractive. Features detailed plant information, photos, frequently asked questions and guestbook. Warsaw, Indiana, USA. |
| Westonbirt_Arboretum Details of the collection, including rare trees, champion trees, and visitor facilities at this national arboretum. Westonbirt, Glos, UK. |
| What_Makes_a_Good_Botanical_Center Personal reviews of botanical gardens, with links. |
| Zilker_Botanical_Garden Schedules and information about tours, projects, and education programs, as well as photo gallery and searchable type specimen register. Austin, Texas, USA. |
| Dr__Seth_Redfield Description and visualizations of the Local Interstellar Cloud, a column density calculator for it, and links to popular articles and research papers. |
| Interstellar_Medium_Learning_pages About ISM from history of observation to current status of understanding. |
| Interstellar_Molecules_evolutionary_cycle Evolutionary cycle of Interstellar Organic Molecules - Fullerenes, PAHs, Polyyenes, and biomolecules. |
| Nebulae Part of a larger site on plasma physics. |
| Observations_of_Interstellar_Molecules About observation of Interstellar molecules in the ISM and Physical information obtained from them. |
| The_UCL_Centre_for_Cosmic_Chemistry_and_Physics University College London. Research into the chemistry which occurs throughout the universe in interstellar space. |
| Astromaterials_Curation Features Moon rocks, Mars meteorites, and space exposed materials at NASA's curation office. |
| Astronomy_161__The_Solar_System Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors. |
| Astronomy_Today__-_Solar_System Fairly detailed information about our sun and its planets. |
| BBCi_Space__Solar_System 3D tour including videos with audio and text information on the Sun and the bodies orbiting around it. (Shockwave and Realplayer required) |
| Computing_Planetary_Positions A detailed online tutorial on how to compute planetary locations using math formulas. |
| Endless_Boundaries Information on the Sun, planets and moons. |
| Exploring_the_Planets Sponsored by the National Air and Space Museum, contains many interesting facts about the planets, pictures, comparisons and a section dedicated to spacecraft. |
| Free_Software_for_Planetary_Science Image processing browers for Mariner 6, 7, 9, 10, Venera 15/16, and Viking Orbiter. |