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Planet Rings Could Be Behind the Formation of Solar System Satellites
Two researchers have
recently proposed the first
ever model explaining how
the great majority of
regular satellites in our
... > full story
Do Missing Jupiters Mean Massive Comet Belts?
Astronomers have discovered
vast comet belts surrounding
two nearby planetary systems
known to host only
Earth-to-Neptune-mass
worlds. The comet reservoirs
... > full story
Dwarf Planet Makemake Lacks Atmosphere: Distant Frigid World Reveals Its Secrets for First Time
Dwarf planet Makemake is
about two thirds of the size
of Pluto, and travels around
the Sun in a distant path
that lies beyond that of
... > full story
Comet Collisions Every Six Seconds Explain 17-Year-Old Stellar Mystery
Every six seconds, for many
millions of years, comets
have been colliding near a
star visible to the naked
eye, astronomers report. ... > full story
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Pluto's Moons and Possible Rings May Be Hazards: New Horizons and the Gauntlet It May Encounter in 2015
October 16, 2012 — NASA's New Horizons spacecraft is now almost seven years into its 9.5-year journey across the solar system to explore Pluto and its system of moons. Just over two years from now, in January 2015, New ... > full story -
Pluto/Charon Poses for Sharpest Ground-Based Images Ever
September 26, 2012 — Despite being infamously demoted from its status as a major planet, Pluto (and its largest companion Charon) recently posed as a surrogate extrasolar planetary system to help astronomers produce ... > full story -
Hubble Discovers a Fifth Moon Orbiting Pluto
July 11, 2012 — A team of astronomers using NASA's Hubble Space Telescope is reporting the discovery of another moon orbiting the icy dwarf planet Pluto. The moon is estimated to be irregular in shape and 6 to 15 ... > full story -
Dusty Disc of Crushed Comets Around a Nearby Star Caused by Collisions With Thousands of Comets a Day
April 12, 2012 — Astronomers have studied a ring of dust around the nearby star Fomalhaut and have deduced that it is created by the collision of thousands of comets every ... > full story -
New Evidence for Complex Molecules on Pluto's Surface
December 20, 2011 — Astronomers have discovered a strong ultraviolet-wavelength absorber on Pluto's surface, providing new evidence that points to the possibility of complex hydrocarbon and/or nitrile molecules lying on ... > full story -
Giant Planet Ejected from the Solar System?
November 10, 2011 — Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to a new ... > full story -
City Lights Could Reveal E.T. Civilization
November 3, 2011 — In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. Astronomers suggest a new technique for finding aliens: Look for their city ... > full story -
Faraway Eris Is Pluto's Twin
October 26, 2011 — Astronomers have measured the diameter of the dwarf planet Eris by catching it as it passed in front of a faint star. This was seen by telescopes in Chile, including the TRAPPIST telescope at the ... > full story -
NASA's Spitzer Detects Comet Storm in Nearby Solar System
October 19, 2011 — NASA's Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as ... > full story -
Stardust Discovered in Far-Off Planetary Systems
September 29, 2011 — Searching for extra-solar planets -- which are planets outside of our solar system -- is very popular these days. About 700 planets are known at the moment, a number that is continuously rising due ... > full story
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