planets
Multi-Planet Systems Common in Kepler Findings
[/caption] Of the 1235 planetary candidates that NASA's Kepler space telescope has found so far, 408 reside in multiple-planet…
Lone Planets “More Common Than Stars”
[/caption] We happen to live in a solar system where everything seems to be tucked neatly in place. Sun, planets,…
Dawn Planetary Delights
[/caption] During the month of May, four bright Planets will grace the morning sky just before dawn. The planets Venus,…
Clyde Tombaugh’s Ten Special Commandments for Planet Hunters
[/caption] Back in 1989, amateur astronomer Toney Burkhart found out that Clyde Tombaugh was going to be giving a talk…
How Big Is Neptune
[/caption] There are many ways to determine 'how big is Neptune'. It has an equatorial radius 24,764 km, a polar…
The Other End of the Planetary Scale
[/caption] The definition of a "planet" is one that has seen a great deal of contention. The ad-hoc redefinition has…
Clockwork Planets
[/caption] While the Perseid meteor shower has been putting on quite a show, there's an awesome "no telescope needed" eye-catching…
Length of Year on Mercury
[/caption] The length of year on Mercury is 87.969 days. In other words, it takes almost 88 Earth days for…
Tenth Planet: The Next World in the Solar System
When astronomers discovered a tenth planet in the Solar System, no known as Eris, they had to develop a whole…
Solar System Coloring Pages
[/caption] Want to find some cool Solar System coloring pages? Here are some links to resources we've been able to…