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While we humans carry on with our daily lives down here on Earth, perhaps stuck in traffic or readingblogs, orjust 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
Saturn's iconic rings may be much older than we thought, scientists say. Data from the Cassini probe shows these thinbands 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 werecrea
An international team of astronomers has discovered the largest known planet orbiting another star. The "transiting" planet - meaning one that passes in front ofits 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 - makingit of extremely low density. Details of the work are to appear i
The most enticing property yet found outside our solar system is about 20 light-years away in the constellation Libra, a team ofEuropean 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
It’s Time to Stand Up for ScienceIf you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history. I’ve been a Scientific American subscriber since I was 12 years old, andit helpedshape the way I look at the world. SciAm always educates and
Water has been detected for the first time in theatmosphere 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 teamreported in February thatit was unable to find evidence of water in this pla
The dual suns that rise and set over Luke Skywalker's homeworld in the film Star Wars may be more thanjust fantasy, according to data fromNasa. 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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