Astronomy

Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.It is being used in planetarium projectors. Just set your coordinates and go.

The Atacama Large Millimeter/submillimeter Array (ALMA), an international partnership of Europe, North America and East Asia in cooperation with the Republic of Chile, is the largest astronomical project in existence. ALMA will be a single telescope of revolutionary design, composed initially of 66 high precision antennas located on the Chajnantor plateau, 5000 meters altitude in northern Chile.

Society for Planetary SETI Research (SPSR) is an organization of scientists and scholars from a variety of disciplines formed around their common interest in anomalies on planets and their satellites whose origins may be the result of intelligent activity. The focus of SPSR research is primarily the surfaces of Mars and the Moon as revealed by orbiter and lander investigation.

The Virtual Solar Terrestrial Observatory (VSTO) is a unified semantic environment serving data from diverse data archives in the fields of solar, solar-terrestrial, and space physics (SSTSP), currently:

The International Astronomical Union (IAU) was founded in 1919. Its mission is to promote and safeguard the science of astronomy in all its aspects through international cooperation.

Extreme Science is the place online to find the biggest, baddest, and the best in the world of extremes and learn about the science behind what makes each the most extreme example of its kind. Here you'll find world records in natural science, including earth science and the plant and animal kingdom. Not only will you find out who holds the records, but also key science concepts used to explain the story behind the record.

The primary purpose of this web site is to share my astrophotography experiences and results with others. I started astrophotography using a webcam and 8" Celestron SCT in 2001.

The Space Telescope Science Institute enables excellence in astronomical research by optimizing the science from state-of-the-art observational instruments in space.

The International Space Apps Challenge is your opportunity to build, create, and invent new solutions to challenges of global importance.

Our on-line system is a detailed sky map. We generate the map automatically using our database with the positions and basic characteristics of space objects.

The seasonal ice cap at the Martian south pole (the one made of dry ice) is evaporating as Astronomers at the University of Arizona watch. A brief discussion of the geology that results.

The Tau Zero Foundation is a volunteer group of scientists, engineers, entrepreneurs, and writers who have agreed to work together toward practical interstellar flight and to use this quest to teach you about science, technology, and our place in the universe. By posting the latest developments and unfinished advancements here, we give students the starting materials to begin their own discoveries. By showing both how daunting and incredible this challenge is, we hope to increase attention on protecting the habitability of Earth while planning journeys into the galaxy. By reaching for the stars we will create benefits every step of the way.

On the International Dark Sky Association starting to lobby Washington D.C.

Will 2009 be the year the federal government finally takes light pollution seriously?

This unique resource covers the entire field of astronomy and astrophysics and this online version includes the full text of over 2,750 articles, plus sophisticated search and retrieval functionality, links to the primary literature, and is frequently updated with new material. An active editorial team, headed by the Encyclopedia's editor-in-chief, Paul Murdin, oversees the continual commissioning, reviewing and loading of new and revised content.