Checking in on Saturn
While we humans carry on with our daily lives down here on Earth, perhaps stuck in traffic or reading blogs, or just enjoying a Springtime stroll, a school-bus-sized spacecraft called Cassini continues to gather data and images for us - 1.4 billion kilometers (870 million miles) away. Over the past months, NASA's Cassini spacecraft has made several close flybys of Saturn's moons, caught the Sun's
BBC NEWS | Science/Nature | Saturn's rings 'may live forever'
Saturn's iconic rings may be much older than we thought, scientists say. Data from the Cassini probe shows these thin bands of orbiting particles were probably there billions of years ago, and are likely to be very long-lived. It means we are not in some special time - the giant planet has most likely always provided a stunning view. Previous data had led researchers to believe the rings were crea
BBC NEWS | Science/Nature | Team finds largest exoplanet yet
An international team of astronomers has discovered the largest known planet orbiting another star. The "transiting" planet - meaning one that passes in front of its parent star as seen from Earth - is about 70% larger than Jupiter. But the gas giant has a much lower mass than Jupiter - the biggest planet in our Solar System - making it of extremely low density. Details of the work are to appear i
New Planet Could Be Earthlike, Scientists Say (Published 2007)
The most enticing property yet found outside our solar system is about 20 light-years away in the constellation Libra, a team of European astronomers said yesterday. The astronomers have discovered a planet five times as massive as the Earth orbiting a dim red star known as Gliese 581. It is the smallest of the 200 or so planets that are known to exist outside of our solar system, the extrasolar o
All Wet? Astronomers Claim Discovery of Earth-like Planet
A team of astronomers announced they have discovered the smallest and potentially most Earth-like extrasolar planet yet. Five times as massive as Earth, it orbits a relatively cool star at a distance that would provide earthly temperatures as well, signaling the possibility of liquid water. "The separation between the planet and its star is just right for having liquid water at its surface," says
BBC NEWS | Science/Nature | Water detected on distant planet
Water has been detected for the first time in the atmosphere of a planet outside our Solar System. The planet, known as HD 209458b, is a Jupiter-like gas giant located 150 light-years from Earth in the constellation Pegasus. Scientists will publish the findings in the Astrophysical Journal. However, another research team reported in February that it was unable to find evidence of water in this pla
BBC NEWS | Science/Nature | Many planets may have double suns
The dual suns that rise and set over Luke Skywalker's homeworld in the film Star Wars may be more than just fantasy, according to data from Nasa. In a classic scene from the 1977 movie, the hero gazes into the distance as two yellow suns set on the horizon. Nasa's Spitzer Space Telescope has found that planetary systems are as common around double stars as they are around single stars, like our ow
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Stereographic Projection Photography – 100 Little Planets
Astronomers find system with five planets
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http://www.yomiuri.co.jp/science/news/20060824it15.htm
http://www.asahi.com/international/update/0824/028.html
http://www.yomiuri.co.jp/science/news/20060823it13.htm
asahi.com： 教科書は？占星術は？ 惑星の新定義に反響続々 - サイエンス
http://www.asahi.com/international/update/0823/025.html
http://www.yomiuri.co.jp/science/news/20060823it04.htm
http://www.yomiuri.co.jp/science/news/20060821i115.htm
asahi.com：太陽系の惑星、一気に３個増か 国際天文学連合が新定義 - 社会
http://www.yomiuri.co.jp/science/news/20060816it11.htm
JSTバーチャル科学館｜惑星の旅