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Throughout history, humans have mainly relied on different forms of light to observe the universe. Today, we are on the edge of a new frontier in astronomy: gravitational wave astronomy. Gravitational waves carry information on the motions of objects in the universe. Since the universe was transparent to gravity moments after the Big Bang and long before light, gravitational waves will allow us to observe further back into the history of the universe than ever before. And since gravitational waves are not absorbed or reflected by the matter in the rest of the universe, we will be able to see them in the form in which they were created. Moreover, we will effectively be able to "see through" objects between Earth and the gravitational wave source. Most importantly, gravitational waves hold the potential of the unknown. Every time humans have opened new "eyes" on the universe, we have discovered something unexpected that revolutionized how we saw the universe and our place within it. Today, with the United States' gravitational wave detector (LIGO) and its international partners, we are preparing to see the universe with a new set of eyes that do not depend on light

Help solar scientists spot explosions on the Sun and track them across space to Earth. Your work will give astronauts an early warning if dangerous solar radiation is headed their way. And you could make a new scientific discovery.

The GalaxyZoo project invites collaborators to take part in an initiative to classify galaxies. By tapping the available time from thousands of gamers and avoiding the expense of labor-intensive non-specialty research, highly qualified scientists are able to focus on specialty tasks and tremendous efficiencies are achieved in terms of speed, results, and reduced research costs.

Milkyway@Home uses the BOINC platform to harness volunteered computing resources, creating a highly accurate three dimensional model of the Milky Way galaxy using data gathered by the Sloan Digital Sky Survey. This project enables research in both astroinformatics and computer science. In computer science, the project is investigating different optimization methods which are resilient to the fault-prone, heterogeneous and asynchronous nature of Internet computing; such as evolutionary and genetic algorithms, as well as asynchronous newton methods. While in astroinformatics, Milkyway@Home is generating highly accurate three dimensional models of the Sagittarius stream, which provides knowledge about how the Milky Way galaxy was formed and how tidal tails are created when galaxies merge.

Beginning in 2006, NASA's Stardust@home citizen science project allows anyone with Internet access to help in the search for the first samples of solid matter from outside the solar system. To learn more, including how to participate, please click on the About tab above or on any of the links below under "More Information." Then join the search by following the Get Started steps found to the left of this page; or after registering, read the latest Stardust@home news in our blog below. We look forwarded to working with you on this exciting research!

Beginning in 2006, NASA's Stardust@home citizen science project allows anyone with Internet access to help in the search for the first samples of solid matter from outside the solar system. To learn more, including how to participate, please click on the About tab above or on any of the links below under "More Information."

SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes radio telescope data

ASTRON, the Netherlands Institute for Radio Astronomy and IBM today announced an initial 32.9 million EURO, five-year collaboration to research extremely fast, but low-power exascale computer systems targeted for the international Square Kilometre Array (SKA). The SKA is an international consortium to build the world's largest and most sensitive radio telescope.

Home Page of sdss.org, includes introduction to project and current events The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy. Over eight years of operations (SDSS-I, 2000-2005; SDSS-II, 2005-2008), it obtained deep, multi-color images covering more than a quarter of the sky and created 3-dimensional maps containing more than 930,000 galaxies and more than 120,000 quasars.