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How Balloons Are Used To Study The Cosmos
Balloons are not only fun but have been a workhorse for scientific research for many years. Read on for more information on how they are used in astronomy.

Published by rojarose (2,056 pts ) on Nov 18, 2009 to
Space Articles
What is Albedo?
Albedo is the measure of the reflective nature of an object. This dimensionless number provides important clues about celestial objects and can even be used as an indicator of global warming. Read on for more information about albedo.

Published by rojarose (2,056 pts ) on Nov 16, 2009 to
Space Articles
What is Retrograde Motion of the Planets?
As we view the motion of the planets, they normally move from east to west. Yet, once in awhile they will seem to change direction and move backwards.This latter is what is referred to as Retrograde Motion of the planets.

Published by SBrno (1,570 pts ) on Nov 9, 2009 to
Space Articles
Nothing But The Facts About The Constellation Orion
The Orion constellation is second only to the constellation of the Big Dipper in recognizability. The constellation was well known to the ancient Greeks with its own hero's and villains and is one of a handful of constellations that are visible from both the northern and southern hemispheres.

Published by George Garza (1,900 pts ) on Oct 29, 2009 to
Space Articles
Stellar Classification
How can you talk about stars if you don't know how they are classified -- or, if you don't know what the different classification systems out there are? This article goes through and describes the basic structure of the Harvard and Yerkes spectral classification systems and how they're used.

Published by allychevalier (14,652 pts ) on Oct 28, 2009 to
Space Articles

LCROSS’s Impact On the Moon (October 9, 2009): What Is It All About?
The much talked about event of LCROSS impact on moon, was successfully executed on October 9, 2009. This mega event had a lot of apprehensions and expectations. It may reveal some long awaited questions about the moon, which may change the history of mankind. Did we learn anything so far?

Published by Sushma (2,979 pts ) on Oct 28, 2009 to
Space Articles
What is the IAU?
The IAU is the International Astronomical Union, a dynamic, engaged international organization made up of professional astronomers. This organization is a leading scientific body that encourages the study of astronomy worldwide.

Published by johnsinit (12,600 pts ) on Oct 27, 2009 to
Space Articles
Why is the Length of Earth's Day Increasing?
Little by little, the length of Earth's day is increasing by 1.7 miliseconds every century over the past 2700 years. However, you don't need to reset your watch anytime soon. But just how much longer will the day become eventually and how soon?

Published by SBrno (1,570 pts ) on Oct 26, 2009 to
Space Articles
Meteoritics –The Branch of Astronomy Studying Meteors, Meteorites and Meteoroids
Many of you might have seen beautiful shooting stars, which streak through the night sky. But how many of you know about the branch of science - Meteoritics - which studies them and the information which scientists can obtain from studying them.

Published by rojarose (2,056 pts ) on Oct 25, 2009 to
Space Articles
Nothing But The Facts About The Oort Cloud
Where do comets come from? Where and how are they formed? These questions were studied by the Dutch Astronomer, Jan Hendrick Oort. His answers went on to show just how far the Sun's influence extends, which is about 30 trillion miles.

Published by George Garza (1,900 pts ) on Oct 24, 2009 to
Space Articles