By: Hortense Foster
There are so many questions that one could ask about dwarf planets, such as (What are dwarfing planets? How could this be? What identifies a planet as being dwarf?) Just a few, but for the purpose of this article it is. What are Dwarf...
By: Tenebris
Originally, the rotation rate of a planet was measured by tracking visual features believed to be on the surface of the planet. This is still the case today for nearby rocky planets with solid surfaces and distinct landforms visible from earth. A different way of...
By: Tenebris
A shepherd moon orbits near the outer edges of a gas giant's rings, or sometimes even within the rings themselves. These moons appear to be responsible for defining sharp boundaries and even gaps in those rings. The gravity of the shepherd moon "herds" wayward ring...
Overview on Kepler's Three Laws of Planetary Motion
By: Effie Moore Salem
Kepler's three laws deal with how the planets orbit the sun. Johannes Kepler (1571-1630) in 1599, as a former assistant to Danish Astronomer, Tycho Brahe (1546-1601), was a note taker and observer of the stars, galaxies, and heavenly matters, worked hard to understand how the...
By: Ramona Taylor
The words "shepherd moon" may bring to mind flocks grazing along green meadows in the moonlight night; however, when applied to celestial bodies, the term brings about another image. Our solar system is home to many phenomenal objects, but the most beautiful and intriguing include...
By: Lenna Gonya
Jovian planets, which include Jupiter, Saturn, Uranus, and Neptune, are truly giants in our solar system. Jupiter’s mass is 318 times that of Earth. Jovian planets, sometimes called the “gas giants“, are truly the giants of our solar system. All of these planets...
By: Tenebris
Dwarf planets are now one of three categories of non-satellite, non-stellar objects orbiting the sun, the other two being planets and small solar system bodies. As defined by the International Astronomical Union (IAU) in 2006, a dwarf planet is a celestial body which: 1. Has...
By: Tenebris
Current conditions on Mars do not support the long-term existence of large masses of liquid water on the surface of Mars. In the modern age of astronomy but before Mariner, it was once thought that if there were any water on Mars, it could only...
By: Lenna Gonya
Even though we aren’t physically aware of it, the Earth is in a constant state of rotation and revolution. Our only indications are the very obvious differences in day and night, and the changing of the seasons caused by this never ending movement. Every...
Annual meteor showers: April's Lyrids
By: Aldrin A Wilding-West
Lyrids Meteor Shower 2011 April 17 to April 26 – No telescope required. The Lyrid meteor shower 2011 promises to be a meteor shower well worth watching, for astronomy enthusiasts and casual viewers alike. During the period April 17 to April 26 2011, Earth will...

 

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