Astronomy & Space Exploration

Cassini-Huygens: Mission to Saturn
The Cassini-Huygens spacecraft reached the Saturnian region in July 2004. The mission was composed of two elements: The Cassini orbiter that is to orbit Saturn and its moons for four years, and the Huygens probe that dove into the murky atmosphere of Saturn's moon Titan and landed on its surface. Photographs taken during the probe's descent and after landing are available for viewing.

Cuyahoga Astronomical Association
A Northeast Ohio astronomy organization formed in 1957 for skywatchers of all levels of accomplishment.

Deep Impact
NASA's Deep Impact mission crashed an 820-pound object into Comet Tempel 1 at 23,000 mph! The impact took place July 4, 2005 and was observed by a nearby spacecraft ("Deep Impact") and by astronomers on Earth. The goal: to learn about what's inside a typical comet.

Their aim is to provide you with all the information you need to observe satellites, the International Space Station, spectacular events such as the dazzlingly bright flares from Iridium satellites as well as a wealth of other spaceflight and astronomical information. They not only provide the times of visibility, but also detailed star charts showing the satellite's track through the heavens. All pages, including the graphics, are generated in real-time and customized for your location and time zone. The link given above is specific to Westlake, Ohio; location settings are possible for any point on the globe.

Hubble Space Telescope
Home site for this orbiting observatory, learn about the telescope, its history, current activities, and view a gallery of amazing astronomical images.

Human Space Flight
Want to know when a spacecraft will be flying over your city? Check out this site.

Mars Exploration Rovers
NASA's Spirit and Opportunity rovers are on Mars. See what they have found!

Mars Express
The European Space Agency's orbiter is studying Mars with cameras, radars, and other instruments.

Mars Odyssey
In orbit around the planet Mars, this spacecraft is carrying science experiments designed to make global observations of Mars.

NASA Space Science Education Resource Directory
"A searchable, web-based database of space science education resources for K-12 teachers and students, including lesson plans, educator guides, student activities, and web sites."

PLANETQUEST: The Search for Another Earth
The next chapter in the brief history of extrasolar planet discoveries is already being written. New tools and visionary technologies currently in development will soon enable us to learn more about the planetary systems of other nearby suns. Explore the many resources offered on this site!

SETI Institute
Learn about the serious scientific search for extraterrestrial intelligence.

Space Weather
Happenings in space have effects on the Earth and its inhabitants. Find out about solar activity, meteor showers, and much more at this site!

The Nine Planets
This site offers an overview of the history, mythology, and current scientific knowledge of each of the planets and moons of our solar system.


Audubon's Birds of America
Online version of Birds of America by John James Audubon. Includes the full text, figures, color plates, and bird calls.

This site is updated monthly and contains over 500 sites. Topics covered include: genetics, health and disease, plant biology, ecology, and much more. Many sites include tutorials on their subjects.

Cleveland Falcon Cam
In season, watch peregrine falcons nest and raise their young via an Internet camera mounted high above ground at Cleveland's Tower City.

Columbus Falcon Cam
Web cameras view a Peregrine falcon nest maintained by the ODNR, Division of Wildlife. The nest is located on a ledge of the 41st floor of the Rhodes State Office Tower in Columbus.

Cornell Lab of Ornithology
The Lab is a nonprofit membership institution whose mission is to interpret and conserve the Earth's biological diversity through research, education, and citizen science focused on birds. Their programs work with citizen scientists, government and non-government agencies across North America and beyond.

Macaulay Library
The Macaulay Library at Cornell University's Lab of Ornithology is the largest collection of animal sounds in the world with more than 160,000 recordings, 67 percent of the world's birds, and rapidly increasing holdings for insects, fish, frogs, and mammals.

Earth Science & Geology

Earth Science Picture of the Day
Each day a different image or photograph is featured, with an accompanying caption, that deals with various topics in Earth Science.

Great Lakes Environmental Research Lab
"The Great Lakes Environmental Research Laboratory conducts high-quality research and provides scientific leadership on important issues in both Great Lakes and marine coastal environments leading to new knowledge, tools, approaches, awareness and services."

NOAA: National Oceanic and Atmospheric Administration
NOAA's Mission is to describe and predict changes in the Earth's environment, and conserve and wisely manage the Nation's coastal and marine resources. NOAA's strategy consists of several interrelated strategic goals for environmental assessment, prediction and stewardship.

National Earthquake Information Center
The United States Geological Survey's World Data Center for Seismology, Denver -- all about the science of earthquakes.

Ohio Geological Survey
The mission of the Ohio Geological Survey is: "To provide geologic information and services needed for responsible management of Ohio's natural resources."

Visible Earth
NASA's searchable directory of images, visualizations, and animations of the Earth.

Electronic Volcano
"The Electronic Volcano is a window into the world of information on active volcanoes. From here you can find many types of materials on active volcanoes worldwide, such as maps, photographs and full texts of dissertations and a few elusive documents. The Electronic Volcano will guide you to resources in libraries or resources on other information servers."

U.S. Geological Survey
Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment. For USGS resources with focus on Ohio, click here!

General Science & Technology

109 - A Visual Interpretation of the Table of Elements
The periodic table of elements with description, historical information, and a visual image.

Earth & Sky
The Web home of the daily radio series. The site, and the show, features astronomy, biology, chemistry, Earth science, environmental science, physics, and more!

Extreme Science
Learn what is the fastest, driest, highest, biggest, deepest, lowest, oldest in the natural world. Each category includes an easy to understand explanation as well as a map.

General Chemistry Online
Search for information on a common compound, look through the FAQs, or take a trivia quiz. Lots of information from Fred Senese, Associate Professor at Frostburg State University.

Science Net
Science Net is from the Toronto Public Library. It covers the following subjects: biology, chemistry geology, botany, astronomy, paleontology, zoology, and physics. Lots of information for all grade levels, kindergarten through higher education.

Science Search Engine.