Aerospaceweb.org
Aerospaceweb.org is a non-profit organization operated by engineers and scientists in the aerospace field. The goal of this site is to provide educational information on a variety of subjects ranging from aviation to space travel to weaponry. The primary areas of expertise include aerodynamics, propulsion systems, vehicle design, engineering career information, and aerospace history.

Astronomy Picture of the Day Archive
Includes an astronomy picture of the day for each day starting on June 16,1995!

Bad Astronomy
Phil Plait, the creator of Bad Astronomy explains the intention of his website thus: "Recently I have become more interested in the history of science, including how science has been misused and misrepresented. As television and movies have become better and better at shaping our views of the world, it is becoming more and more important that we understand what it means to be scientific. Like it or not, those that understand science and technology will always have the advantage over those that don't. If everyone had even a basic grasp of scientific principles, this planet would be a better place."

Earth Observatory
The purpose of NASA's Earth Observatory is to provide a freely-accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet. The focus is on Earth's climate and environmental change.

The Encyclopedia of Astronomy, Astrobiology and Spaceflight
The Encyclopedia of Astronomy, Astrobiology and Spaceflight's goal is to provide as comprehensive source of information covering contemporary astronomy and all related topics.

Exosolar
Exosolar.net is an astronomy site where you can find about 2000 stars and their components (mostly within 75 lightyears).

Explore Mars Now
The Explore Mars Now website posits the design for a Mars habitat and exploration vehicle that will be necessary when we send a manned expedition to the Red Planet.

Jet Propulsion Laboratory
The Jet Propulsion Laboratory is managed for NASA by the California Institute of Technology has information about their missions in the Solar System and beyond.

Mars Exploration Rover Mission
The Mars Exploration Rover mission is part of NASA's Mars Exploration Program, a long-term effort of robotic exploration of the red planet.Primary among the mission's scientific goals is to search for and characterize a wide range of rocks and soils that hold clues to past water activity on Mars.

NASA for Post Secondary Students
NASA maintains this site as a resource for college students combining features and news, research assistance, learning opportunities, multimedia resources and career information.

NASA Science
The Science Mission Directorate (SMD) engages the Nation’s science community, sponsors scientific research, and develops and deploys satellites and probes in collaboration with NASA’s partners around the world to answer fundamental questions requiring the view from and into space. SMD seeks to understand the origins, evolution, and destiny of the universe and to understand the nature of the strange phenomena that shape it. SMD also seeks to understand:
 

• the nature of life in the universe and what kinds of life may exist beyond Earth;

• the solar system, both scientifically and in preparation for human exploration; and

• the Sun and Earth, changes in the Earth-Sun system, and the consequences of the Earth-Sun relationship for life on Earth.

Neave Lab Planetarium
Neave Lab Planetarium - the online version

The Night Sky Live
Scientific objectives of the CONCAM project include the tracking of bright stars and highly variable phenomena such as novae, supernovae, optical counterparts to gamma-ray bursts. Astronomers might be interested in CONCAM images, however, for information they provide about weather and seeing conditions. CONCAM images will be uploaded soon after being acquired to a publicly accessible web page which can be inspected by astronomers in neighboring domes, astronomers attempting to observe from a remote location, or others generally interested in observing site conditions on any particular date and time.

Phoenix Mars Mission
The University of Arizona is honored to be the first public university to lead a mission to Mars. The Phoenix Mars Mission, launched in August 2007, is the first in NASA's "Scout Program." Scouts are designed to be highly innovative and relatively low-cost complements to major missions being planned as part of the agency's Mars Exploration Program.

RedOrbit
RedOrbit.com is committed to providing stimulating, original content and presentation, with over 500,000 pages covering the vast ideological spectrums of space, science, health, and technology. The beautiful and engaging forum created at RedOrbit.com promotes a friendly and open environment, enhancing user loyalty and community, while advancing RedOrbit's goal of providing the world with a virtual Utopia for intelligent, curious minds.

Saturn and Titan
On October 15, 1997, the Cassini-Huygens spacecraft, loaded with an array of powerful instruments, rocketed into space on a seven-year journey to Saturn and its vicinity. On July 1, 2004 Universal Time (June 30 in U.S. time zones), the spacecraft began orbiting Saturn for four years, flying close to several of its thirty-plus moons. The Huygens probe will separate from Cassini in December 2004, dive down through the thick, cloudy atmosphere of Saturn's largest moon, Titan, and land on Titan's surface in January 2005. Scientists expect that this extended tour of the Saturnian region will provide new information about the planet’s composition and atmosphere and its mysterious moons and rings. They also hope to learn more about the formation of the solar system. This Web site explores Saturn and its environs, adding new images and information as they become available.

Space.com
Space.com is the award-winning web site that offers rich and compelling space, astronomy and technology content, including information, education, entertainment and business news.

Space Weather
What are scientists talking about when they say "space weather"? How is it like weather on Earth? How is it different? How does space weather affect me? Can astronomers forecast space weather, and if so, how? What are the unsolved mysteries in the field of space weather?

World Sunlight Map
The World Sunlight Map provides a computer-generated approximation of what the earth currently looks like. While less impressive than actually being into orbit, this is much more accessible to most of us.
"I start with cloudless images of the earth during the day (from a pair of NASA satellites) and night (from a DoD program to map city lights). Every 3 hours, I download a composite cloud image based on data from weather satellites all over the world. And every half hour, these images are composited and mapped onto a sphere by xplanet according to the relative position of the sun. The flat maps are post-processed by ImageMagick to cut off the 15 degrees nearest the north and south poles where cloud data is unavailable."

WorldWide Telescope
The WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope—bringing together imagery from the best ground and space-based telescopes in the world for a seamless exploration of the universe.