Bid to solve dispute over planets http://news.bbc.co.uk/2/hi/science/nature/4273424.stm ‘10th’ Planet has moon companion http://news.bbc.co.uk/2/hi/science/nature/4304048.stm Information on the telescope used to discover Xena and Gabrielle http://www.astro.caltech.edu/palomarnew/sot.html Discovery of Xena’s...

A variety of man-made objects have been sent into outer space for decades, and as a very large and distinguished group, they have sent back important data. NASA has been at the forefront of these efforts here in the United States, and the Landsat Program has certainly been quite successful since its inception in the early 1970s. This website provides a wealth of information on the Landsat Program,...

Born in 1857 in Nashville, Edward Emerson Bernard started his long career as an apprentice to a photographer at the age of nine. Over the following decades, he would become one of America’s most famous observational amateurs, a position that would lead him to create his noted atlases of various regions of the Milky Way. The atlases were finally published in 1927, Barnard passed away in 1923, and...

Academic Earth provides videos of lectures by top scholars in "Subjects" that range from Astronomy to Entrepreneurship to Religion, from "Universities" as celebrated as MIT, Berkeley, Harvard, and Stanford. Visitors must register to view the lectures, but registration is free. There are over 1500 video lectures available, with more being added everyday. In addition to viewing the lectures...

"Most people would be really surprised if you told them there was two million pieces of space junk...surrounding the earth as close to 160 kilometers away," notes sound artist Nick Ryan. Ryan, along with film director Cath Le Couteur, are the masterminds behind Adrift, an unusual, multifaceted project about space debris. This project, which will appeal to art fans and space fans alike, is made up...

What have we learned about the universe over the past four centuries? Visions of the Universe asks just that, looking deep into the past to bring a bit of this history to the general public. On the site, visitors can make their way through twelve exhibits, including Storms on the Sun and Journey To Mars. Each section features a detailed poster for classroom use, along with other activities and...

The major organization of professional astronomers in North America, the American Astronomical Society's (AAS) main goal "is to promote the advancement of astronomy and closely related branches of science." The website presents the Society's three scholarly journals and its numerous publications. The Education link offers an abundance of educational resources for users of all levels, answers to...

Located in the northwest corner of New Mexico, Chaco Canyon is a shallow, ten-mile canyon accessible only by washboard dirt roads. It is an area of tremendous cultural importance, as it was once the center of an elaborate system of buildings, roadways, and other construction. Intense building activity continued at the site until about AD 1150, and then it was quickly abandoned. Today, it is a...

Located on a limestone plateau in the northern area of the Yucatan peninsula, the dramatic ruins of Chichen Itza stand as a testimony to the ingenuity of the Mayan civilization. Many visitors flock to the area to view these structures, and now it is also possible to view them via this fine exhibition created by the Exploratorium Museum. With substantial funding from the McBean Family Foundation...

This website presents the news, events, and research of one of the UK and Ireland's leading astronomical research institutes, Armagh Observatory. Users can learn about the Observatory's many research projects in topics including stellar astrophysics, solar physics, and climate and meteorology. The site presents the long history of the observatory and its instruments. Educators can discover the...