Category: Planetary Science
6 October 2009
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ScienceNOW(Science - AAAS)
One Planet, Two Parents?
Gas giant with eccentric orbit may be being pulled by two suns
6 October 2009
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ScienceNOW(Science - AAAS)
Mystery Solved: The Dark Side of a Moon
Solar system's largest ring discovered, and it's tarnishing a neighbor
24 September 2009
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ScienceNOW(Science - AAAS)
A Whiff of Water Found on the Moon
Water molecules are hopping across the lunar surface, which is still about as parched as a mummy sunbathing in the Sahara
17 September 2009
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ScienceNOW(Science - AAAS)
And the Solar System's Coldest Spot Is ...
Scientists reveal chilly findings--and uncertain prospects for future astronauts--at NASA press conference
26 August 2009
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ScienceNOW(Science - AAAS)
Kamikaze Planet
A strange world is locked in a fatal tug of war with its parent star
30 July 2009
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ScienceNOW(Science - AAAS)
Winds of Change on Saturn
At long last, scientists figure out which way the wind blows on gas giant
19 June 2009
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ScienceNOW(Science - AAAS)
Team Detects High-Speed Hydrogen Atoms Coming From the Moon
Reflected solar particles can reveal details about the surfaces of other worlds
20 May 2009
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ScienceNOW(Science - AAAS)
Martian Water Had Antifreeze
Dissolved minerals might have kept liquid flowing on the Red Planet
20 May 2009
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ScienceNOW(Science - AAAS)
Earth's Hellish Era Not So Bad for Life
Massive impacts didn't sterilize our planet, according to new simulation
14 May 2009
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ScienceNOW(Science - AAAS)
Why Comets Are Dirty
Researchers reveal how comets become full of dust grains
12 May 2009
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ScienceNOW(Science - AAAS)
Recent Rivers on the Red Planet
Young valley networks indicate water coursed not long ago on Mars
8 May 2009
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ScienceNOW(Science - AAAS)
Sun's Behavior Flummoxes Solar Scientists
New prediction pushes back timing and intensity of solar activity, but not everyone is on board
30 April 2009
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ScienceNOW(Science - AAAS)
Did Mars's Magnetic Field Die With a Whimper or a Bang?
Study suggests massive asteroids could have released enough heat to shut down the Red Planet's dynamo
21 April 2009
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ScienceNOW(Science - AAAS)
Closing In on the Next Earth
Astronomers report the most Earth-like planet yet beyond the solar system as well as a possible "water world"
10 April 2009
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ScienceNOW(Science - AAAS)
Blasting for Ice on Mars
Ongoing impacts are revealing what may be remnants of an ancient ice age
![Picture of planet](http://news.sciencemag.org/sciencenow/assets_c/2010/02/200940121-thumb-60x60-2011.jpg "Read: A "Hot Saturn" That's Not So Odd")
1 April 2009
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ScienceNOW(Science - AAAS)
A "Hot Saturn" That's Not So Odd
The standard model of solar system formation can explain a planetary maverick
25 February 2009
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ScienceNOW(Science - AAAS)
Solar System Pinball
Large gaps in the main asteroid belt reveal that outer planets have altered their orbits
30 January 2009
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ScienceNOW(Science - AAAS)
Titan's Methane Mystery
Scientists suspect liquid hydrocarbon reservoirs lurk beneath moon's surface
15 January 2009
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ScienceNOW(Science - AAAS)
Lunar Rock Opens Door to Moon's Past
Study suggests an Earth-like core
26 November 2008
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ScienceNOW(Science - AAAS)
Most Planets May Be Seeded With Life
Discovery of RNA precursor in planet-forming cloud suggests building blocks of life are common in the universe
14 November 2008
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ScienceNOW(Science - AAAS)
Earth's Minerals Evolved, Too
Life and rocks have changed in concert
13 November 2008
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ScienceNOW(Science - AAAS)
Astronomers See Exoplanets for First Time
Direct detection is the latest step toward discovering other, possibly inhabited, Earths
30 October 2008
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ScienceNOW(Science - AAAS)
First Planets Lived Fast and Died Young
Short-lived miniplanets inhabited the solar system in its earliest years
8 October 2008
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ScienceNOW(Science - AAAS)
Asteroid Watchers Score a Hit
Astronomers nail prediction of a tiny asteroid impact
25 September 2008
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ScienceNOW(Science - AAAS)
Planets Turned to Dust
Remnants of two pulverized worlds discovered in a mature solar system
5 August 2008
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ScienceNOW(Science - AAAS)
NASA Quashes Rumors of Life on Mars
Phoenix-lander scientists come clean about what they've found in the martian dirt
9 July 2008
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ScienceNOW(Science - AAAS)
A Trickle on the Moon
New chemical analyses and computer models find water molecules in lunar soil
2 July 2008
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ScienceNOW(Science - AAAS)
Rain on the Martian Plain?
A new soil analysis suggests a drizzly past for the Red Planet
26 June 2008
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ScienceNOW(Science - AAAS)
Mars OK for Life, So Far
"You could grow asparagus," says scientist, but signs of past inhabitants are still lacking
20 June 2008
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ScienceNOW(Science - AAAS)
Phoenix Touches Martian Ice
The Mars lander takes a major leap in its pursuit of life
19 June 2008
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ScienceNOW(Science - AAAS)
Twin Stars Not So Identical
Binary suns born at different times pose a riddle
16 June 2008
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ScienceNOW(Science - AAAS)
Life Cooked Up in Outer Space?
Meteorite fragments contain makings of DNA
5 June 2008
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ScienceNOW(Science - AAAS)
Odd Ring Out
Study reveals why one of Saturn's halos doesn't fit the mold
2 June 2008
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ScienceNOW(Science - AAAS)
Smallest Extrasolar Planet Portends Other Earths
Newly discovered world only three times as large as ours, orbits tiny sun
29 May 2008
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ScienceNOW(Science - AAAS)
Salty Mars Looking Bad for Life
New calculations suggest Red Planet was too briny to harbor microbes
27 May 2008
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ScienceNOW(Science - AAAS)
Phoenix Descends Onto a Strange Land
A textbook landing returns the first close-ups of the martian Arctic
22 May 2008
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ScienceNOW(Science - AAAS)
Martian Canyons by a Trickle or a Gush?
Geologists are re-evaluating valleys long interpreted as signs of a warm and wet early Mars
30 April 2008
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ScienceNOW(Science - AAAS)
Jupiter's Shadowy Ring Behavior
Sunlight and magnetism deform Jupiter's outer ring
20 March 2008
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ScienceNOW(Science - AAAS)
A Deep Ocean--and Life?--for Titan
An ice-covered sea on Saturn's moon could harbor simple organisms
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