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Solar System Astronomy


Feature Writer Articles in Solar System Astronomy

 		The 10 Largest Moons in the Solar System
The solar system's ten largest satellites are scattered between the gas giant planets - and Earth.
When Asteroids Collide
The Hubble Space Telescope has captured an image of the aftermath of a collision between two asteroids.
The Moons of Neptune
Triton is the largest moon of Neptune, with six regular satellites inside its orbit and six irregular ones farther out.
Mars's Moons Phobos and Deimos
Phobos and Deimos are Mars's two small moons that were once asteroids.
New Moon and Eclipse
New Moon and Eclipse are more than just books by Stephenie Meyer and a hit movie series.
10 Facts About Mars
Learn interesting tidbits about Mars, the fourth planet from the Sun.
Lightning Storms on Saturn
The Ringed Planet hosts lightnings storms that can last for months on end.
Tropical Storms on Titan
Astronomers were surprised to find that Saturn's dry moon has large-scale atmospheric turbulence where none was expected.
Jupiter Hit by Comet or Asteroid
An amateur astronomer reports first sighting of new impact evidence on the solar system's largest planet.
Weather and Seasons on Titan
Saturn's largest moon has a substantial atmosphere that experiences seasonal change.
Weather on Other Planets
The solar system is a stormy place with dust devils, sulfuric acid rains, and screaming winds.
Facts About Meteors
Meteors are sudden streaks of light in the sky that can happen during predicted showers or at random.
New Member of the Solar System Discovered
The new solar system object named 2006 SQ372 is spotted on its 22,500-year-long orbit around the sun.
Makemake: The Fourth Dwarf Planet
Makemake is a Pluto-like object lying in our solar system beyond Neptune's orbit.
Ice Found on Mars
NASA's Phoenix Lander seems to have fulfilled one of its main missions: finding signs of water on Mars.
The First Day of Summer
The Northern Hemisphere welcomes the first day of summer on June 20 or June 21 depending on your location.
Climate Change on Jupiter
Understanding temperature change on our solar system's largest gas giant planet.
New Storms Spotted on Jupiter
Storms are firing up in Jupiter's atmosphere, with new areas of turbulence popping up near the Great Red Spot.
Facts About Asteroids
Learn more about the thousands of miniature planets called asteroids that orbit the sun.
First Ring Found Around a Moon
The first lunar ring has been found around a moon of the planet best known for its rings: Saturn.
The First Day of Spring
Spring begins in the Northern Hemisphere as Earth's Noth Pole tilts sunward.
Understanding the Solar Cycle
What is the solar cycle and how long does it last? What are the effects of the sun's changing cycle?
Asteroid Might Hit Mars
An asteroid approximately 60 meters in diameter has a 1-in-25 chance of smashing into Mars on January 30, 2008.
First Day of Winter
The astronomical beginning of the winter season is signaled by Earth's tilt and the amount of sunlight received in the Northern Hemisphere.
Comet Holmes Now Larger than Sun
Comet Holmes is now greater than the size of the sun and continues to be easy to spot in the night sky.
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Contributing Articles in Solar System Astronomy

 		A Tour of Mars
Famous for its red color, the fourth planet from the Sun has many interesting characteristics, both unique to itself and in common with Earth.
An Introduction to the Planet Saturn
Saturn is the second largest planet in our solar system and is best known for its extensive ring system. However, it has other fascinating features worth exploring.
An Astronomer's View of Earth
Few people consider Earth as an astronomical object, but it is, after all, a planet with its own place in the solar system.
A Tour of Venus, Earth's Twin Planet
The planet Venus is a famous sight in Earth's sky, and Earth's nearest neighbor. But there is so much more to know about this cloudy planet.
The Planet Mars and the 2010 Opposition
Mars is a dominant feature of the current night sky, a bright ruddy beacon that is in the middle of its biennial close approach to Earth.
A Tour of Mercury
The small planet Mercury is a lot more interesting than its monotonously-cratered surface would indicate.
The Moon is Receding from the Earth
In 1969 the Apollo 11 astronauts placed the Lunar Laser Ranging Experiment on the Moon's surface in the Sea of Tranquility. Scientists now know that the Moon is receding.
Danger from Near Earth Objects
The Earth has a history of being struck by many large objects and it will happen again. Scientists are trying to keep an eye on those things that come too close.
Is Chiron an Asteroid or a Comet or a Mystery?
Chiron was discovered on November 1, 1977. When discovered it was assumed the most distant known asteroid. It was named Chiron in 1979.
Is Pluto a Planet or What
All was well until scientists began to discover some pretty big objects beyond Pluto. The issue has lots of non-scientists in an uproar. What's the problem with Pluto?
The Curious Outer Solar System
Pluto suffered the indignity of demotion from planetary status. All is not lost, however, for Pluto is now the largest Kuiper Belt object known.
The Oort Cloud is the Home of Comets
The Oort cloud is a cloud surrounding the solar system extending outward to about three light years from the Sun. It is a haven for trillions of comets.
New Moon or any Moon Facts and Fun
New moon, blue moon, full moon, and on it goes. The Moon always provides fodder for fascinating conversation. Here are a few fun and interesting examples.
Asteroid Presents Danger to Earth
Apophis is an asteroid with an orbit that brings it near the Earth. It is large enough to make a catastrophic impact should it strike Earth on one of its near misses.
The Eight Planets of the Solar System
There are eight planets that orbit around the solar system. Check out to know more about those planets.
Teaching Kids About the Solar System
Here are a few activities to help kids learn about the scale of the Solar System, and the characteristics of individual planets and moons.
Eyes in Outer Space - Images on ciclops.org
Ciclops.org provides an astounding collection of images from around the Solar System.
What Are Asteroids?
Asteroids are metallic or rocky minor planets that orbit the Sun in the asteroid belt between Jupiter and Mars.
Some Facts about the Sun
There may be a lot about our star, the Sun, you simply didn't know.
Earthshine is One of the Moon's Greatest Shows
Each month just after new moon, a slim crescent moon is visible early in the evening not long after sunset just above the horizon. Photographers love it! You will too.
The Book of the Moon by Rick Stroud
Dubbed "a visually striking cornucopia of everything worth knowing about our closest neighbor in space," this book is a celebration of our relationship with the Moon.
The Once and Future Moon by Paul D. Spudis
Respected space scientist and lunar expert Paul S. Spudis provides a detailed and authoritative account of the moon's history, geology and structure.
Fun Facts About Saturn's Moons
The planet Saturn, surrounded by its famous rings, is also surrounded by some of the most unique moons in the Solar System.
Water on the Moon, the Precious Secret Revealed
The Moon and Earth joined an exclusive club in being the only two heavenly bodies upon which man has walked. In October, they increased their bond with a new discovery.
Water Found On The Moon, NASA Reports
Water, one of the hallmarks of Earth and a necessity for life, has been discovered on Earth's Moon. Lunar water may facilitate future moon exploration.
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