Icy Tethys, Moon of Saturn, Information, Facts and Figures
Saturn has many fascinating moons and Tethys is no exception. Two massive surface features, a body of nearly pure water ice and two Trojan companions …
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Brown Dwarf Stars: Are They Lurking Around Our Solar System?
Recent speculation revives the late nineteenth century search for “Planet X,” a large object thought to reside beyond Neptune. The reasons …
Continue ReadingSupernova Remnants: The Broken Bodies of Stars
On average, once every half century in our Milky Way galaxy, a star blows itself apart and nearly outshines the entire galaxy. The star effectively …
Continue ReadingUnderstanding the Interplanetary Dust Cloud that Creates Zodiacal Light
Have you ever spotted a faint oval glow near the horizon in spring or autumn? Then you may have seen the Zodiacal Light. Count yourself lucky! Most …
Continue ReadingFamous Craters and the People They Are Named After
The craters on the Moon have been assigned names, some famous. some not. Read the stories of a few fascinating folks whose names have been given to …
Continue ReadingPtolemaic Theory -- An Ancient System for Understanding Our Solar System and the Universe
Sometimes, ideas hold great power and Claudius Ptolemy’s second century treatise on astronomy was a big hit with civilization for over a …
Continue ReadingLearn About Australian Aboriginal Astronomy
The Australian Aboriginal people have a relationship with astronomy that stretches back through many generations. Read on to discover the meaning that …
Continue ReadingFree Astronomy Sky Software That is Free to Download
Have you ever wanted to know more about the Universe, but couldn’t afford your own space ship? Some software prices are pretty outrageous, too. …
Continue ReadingAstronomy Facts for Kids
Our universe is huge and astronomy studies all of that stuff beyond the sky. The cosmos contains far more than just stars and planets. Even own Milky …
Continue ReadingAstronomy Reasons the Sun and Moon Are Seen During the Day
The overwhelming brightness of the Sun makes it impossible to view stars or planets during the day, but our close neighbor, the Moon, isn’t like …
Continue ReadingDIY Binocular Astronomy Projects: Seeing Stars is Easier Than You Think
Want to explore the galaxy but don’t want to pay out big bucks for an expensive telescope? Find out why binoculars and double stars are ideal …
Continue ReadingRetirement of the Space Shuttle Program is Wrong
Watching the Atlantis arrive from its last voyage into space was a remarkable moment for all Americans. After 30 brilliant years of triumph and …
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