Disciplines & Professions: Astronomy
Astronomy is the scientific study of matter in outer space (beyond Earth's surface and lower atmosphere), especially the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies and phenomena. Sometimes referred to as observational astronomy.
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Featured Article
Common Unit Prefixes and Radiation Types Used in Astronomy
Unit Prefixes Commonly Used in Astronomy Standard prefixes for the SI (International Standard) units of measure Multiples (Large) Name deca- hecto- kilo- mega- giga- tera- peta- exa-...
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Featured Blog Post
The Night Sky: December 2009
The Night Sky in December 2009 By Harry J. Augensen Professor of Physics & Astronomy, Widener University Moon’s Phases in Month Full Moon on the 2nd and on the 31stNew Moon on the...
Featured Resource
Around the World in 80 Telescopes - Recorded Videos Archive
"Around the World in 80 Telescopes" was a unique live 24-hour webcast, held April 3-4, 2009, that visited some of the most advanced observatories both on and off the planet. "Around the World in 80 Telescopes" was organized by the European Southern...
Latest News
100 Hours of Astronomy (April 2-5, 2009)
The International Year of Astronomy 2009 Cornerstone Project, "100 Hours of Astronomy," is on track to be the largest single science public outreach event ever. More than 1500 events have...
Articles
Annotated Timeline Dates extend to 2005; those marked "c." are approximate. - Dates in red are from the basic ...- Glossary Table of Contents Click on the item whose definition you want (The anchor-links presently point to Ph...
Introduction As one of the first steps towards a coherent theory of galaxy evolution, the American astronomer ...
Introduction Trying to push deeper into the universe, astronomers have developed a number of new techniques fo...
Introduction Some 2000 years after Hipparchus, in the year 1840. Louis Agassiz, a Swiss scientist, published a...
In 1766 the German astronomer Titius observed an interesting regularity among the mean distances of planets kn...
Introduction So familiar has the calendar become that people tend to forget that it, too, had to be invented. ...
Blog Posts
The Night Sky in October 2009 By Harry J. Augensen Professor of Physics Astronomy, Widener University Moon...
The Night Sky in August 2009 By Harry J. Augensen Professor of Physics Astronomy, Widener University Moons...
The Night Sky in April 2009 By Harry J. Augensen Professor of Physics Astronomy, Widener University Moons ...
The Night Sky in March 2009 By Harry J. Augensen Professor of Physics Astronomy, Widener University Moons ...
News Articles
NASA Science News (Jan. 8, 2009): When last month's full Moon rose over Florida, onlooker Raquel Stanton of Co...
Resources
The gateway to the Carl Sagan sites. Our mission is to awaken the broadest possible public to the wonders of n...
"Curious About Astronomy? Ask an Astronomer" is run by volunteers in the Astronomy Department at Cornell U...
"Educational Web Sites on Astronomy, Physics, Spaceflight and the Earth's Magnetism" By David P. Stern, M.Sc....
What's the story behind electroshock therapy? Who's responsible for increasing the size of the Universe? What ...
The history of cosmology is a grand story of discovery, from ancient Greek astronomy to space telescopes. ...
"The Institute of Physics news pages provide the latest news from both the Institute itself and also from the ...
"Current Breaking Space News Articles" including an interactive encyclopedia, cosmic log, interactive content...
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