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Geotimes September 2005 Kathryn Hansen	Tristar Planet A recent planet found in a triple-star system perplexes astronomers because, according to current models of planetary formation, it should not exist.
Wired December 2004 Patrick Di Justo	Mysteries of the Cosmos The top 13 places to explore in outer space.
Smithsonian October 2006 Robert Irion	What Makes a Planet? As just about everyone in the solar system knows by now, members of the International Astronomical Union came up with a new definition of planets that leaves Pluto out in the cold.
Geotimes March 2006 Kathryn Hansen	Young Planets Collide Size mattered, astronomers say, when it came to whether or not material in our early solar system stuck together to become today's terrestrial planets. New models suggest that collisions between large objects did not always result in those objects combining, as previously thought.
Geotimes October 2006 Kathryn Hansen	Planets Redefined: Pluto Gets Demoted Members of the International Astronomical Union voted to demote Pluto, and to give the asteroid Ceres a promotion. Arriving at this new system, however, was not without controversy among astronomers, the public and even geologists.
Geotimes March 2004	Sedna: Newly sighted planetoid in the solar system At the edge of the solar system, astronomers have unexpectedly sighted an object slightly smaller and farther from the Sun than Pluto -- not quite another planet, but not a temporary visitor either.
Smithsonian December 2006 Eric Jaffe	Clues from a Comet The first mission to collect space matter from beyond the moon offers insights into the solar system's creation.
Popular Mechanics October 28, 2009 Karen Rowan	9 Wildest Exoplanets Ever Spotted A team of European planet hunters has uncovered a bonanza of 32 new exoplanets, planets outside our solar system.
Chemistry World July 27, 2015 Katrina Kramer	A space traveller's guide to the solar system Mark Thompson will take you on a holiday around our solar system in his new book, A space traveler's guide to the solar system -- a journey that promises to be both terrifying and awe-inspiring.
Smithsonian October 2006 Robert Irion	The Planet Hunters Never mind the demotion of Pluto to a dwarf planet. Astronomers have found about 200 planets orbiting other stars, and they say it's only a matter of time before they discover another Earth.
Scientific American January 2009 Charles Q. Choi	Does Dark Matter Encircle Earth? Dark matter might exert measurable effects on the earth, moon and gas giants
Geotimes May 2005 Josh Chamot	Early Jupiter Spawned Early Meteorites Researchers have generated a model of the early solar system that suggests that Jupiter's formation may have spawned chondrules.
Scientific American September 2008 David Appell	The Sun Will Eventually Engulf Earth--Maybe Researchers debate whether Earth will be swallowed by the sun as it expands into a red giant billions of years from now
Science News March 29, 1930	TimeLine: Mar. 29, 1930 Wanted: Early Planet Photographs... Additional Observations...
Salon.com December 2, 1999 William Speed Weed	Master of the universe With the existence of six new planets announced just this week, Geoffrey Marcy is racking up "extrasolar" discoveries like Mark McGwire racks up homers.
Geotimes July 2004 Jay Chapman	Sliding into Saturn Late Wednesday night, the Cassini-Huygens spacecraft silently slipped through the outermost rings of Saturn and entered into orbit. By early Thursday morning, Cassini began transmitting strikingly elegant close-up images of Saturn's rings.
Science News March 22, 1930	TimeLine: Mar. 22, 1930 70 Years Ago in Science News: The Sun'S New Trans-Neptunian Planet... Black As Coal, Dense As Zinc... Naming The Planet
Geotimes May 2004 Sara Pratt	Deciphering Planetary Magnetism Neptune and Uranus both have unusual magnetic fields that tilt at a 60-degree angle toward their equators. Scientists are now able to model the processes that shape the planets' magnetism.
Geotimes March 2006 Naomi Lubick	Starry Lens A newly discovered planet may be the most Earth-like planet found to date outside our solar system. The discovery confirms the value of a relatively new detection method known as gravitational lensing.
Geotimes October 2007 Erin Wayman	Reaching for the Stars in Planet Formation Most known exoplanets orbit stars that appear to be rich in metals. New research suggests these stars may be polluted with metal from planetary debris -- or even a planet -- that collided with the star.
Chemistry World March 14, 2013 Jon Cartwright	Exoplanet spectrum hints at 'core accretion' Scientists in the US and Canada have uncovered what could be the most detailed spectrum of an exoplanet to date. The spectrum reveals the presence of carbon monoxide and water, which suggest that the planet formed by core accretion.
Chemistry World November 3, 2014 Tim Wogan	Earth ripe for life soon after formation There has been water on Earth since shortly after it formed, say researchers from the US, who compared the deuterium to hydrogen ratios in water on Earth and from the Vesta asteroid belt.
Popular Mechanics November 19, 2009 Stephen Ornes	This Is Not Your Grade School Solar System: Gallery What has changed in solar system imagery over the past few decades and what we can learn from it
Geotimes February 2007 Cassandra Willyard	Surprise! Stardust Lands Actual Stardust The dust is clearing around a cosmic puzzle that has long piqued the interest of astronomers. Tiny grains of dust, no larger than the width of a human hair, are revealing the conditions in which the solar system, and perhaps life, got its start.
IEEE Spectrum April 2012 Gregory L. Matloff	Deflecting Asteroids A solar sail could use light to nudge an earthbound rock into an orbit we could live with
AskMen.com	Earth-Like Planet Found Astronomers have finally found a place outside our solar system where there's a firm place to stand -- if only it weren't so broiling hot.
Science News November 21, 2008 Alan Stern	Debates Over Definition Of Planet Continue And Inspire The definition of a planet continues to be debated between astronomers and planetary scientists.
Geotimes January 2007 Kathryn Hansen	Saturn Surprises with Southern Storm Earth, Jupiter and Venus have all been observed to support giant, rotating storm masses. Now, astronomers have found that Saturn, too, boasts a hurricane-like structure at its south pole.
Chemistry World August 2009 Richard Corfield	One giant leap NASA's Apollo missions answered many questions about the Moon - and as NASA unveils plans to return, lunar chemistry will again play a prominent role
Chemistry World May 25, 2011 Simon Hadlington	Mars is the planet that never grew up Scientists in the US have analysed isotopes in meteorites that resemble Martian geology and have discovered that the planet stopped growing while its solar system siblings carried on developing.
IEEE Spectrum December 2012 Toth & Turyshev	Finding the Source of the Pioneer Anomaly Thirty years ago, the first spacecraft sent to explore the outer solar system started slowing unexpectedly. Now we finally know what happened
Popular Mechanics December 2006 David Noland	The Threat is Out There More than 100,000 asteroids hurtle past our planet. But only one -- that we know of -- may hit us in the next 30 years.
Popular Mechanics July 2007 Noah Shachtman	How NASA's New Telescope Chases Planets NASA is launching its first-ever planet-hunting mission next year, sending the Kepler spacecraft on a quest to find 1000 more planets -- and 50 new Earths.
Wired December 2004 Frank Drake	The E.T. Equation, Recalculated Fifty years ago, those of us who dreamed about finding extraterrestrials thought we knew where to look: planets with temperatures somewhere between the freezing and boiling points of water.
IEEE Spectrum March 2009 Anna Bogdanowicz	NASA Planet Hunter to Search Out Other Earths The Kepler satellite, scheduled to launch this month, will spend more than three years hunting for planets that might support life
Chemistry World July 13, 2012 Simon Hadlington	Where did Earth's water come from? One big question that remains unanswered about the evolution of the early Earth is how volatiles such as hydrogen, nitrogen and carbon arrived -- their presence being crucial to the origins of water and life.
Geotimes May 2005 Laura Stafford	Saturn's New Moon In a small space between Saturn's rings, scientists discovered a previously unknown moon, currently known as S/2005 S1, from the images sent back to Earth from Cassini less than a year after the spacecraft began orbiting Saturn.
IEEE Spectrum March 2007 Mark Anderson	Planet Hunters Wanted The rate of extrasolar planet discoveries could mount not by building new planet-finding telescopes or satellites, but by marshalling an army of amateur astronomers and enthusiasts along with their personal computers.
Geotimes December 2005	Highlights 2005 -- Space Rovers still trucking... New "planetary" neighbors... Back to space...
Scientific American June 2009 John Rennie	Inspirations in Space and Closer to Home Astronomers are finding new planets; humanitarians are improving this one
Science News December 23, 2000	TimeLine: December 20, 1930 70 Years Ago in Science News: Arachne Provides Lovelier Festoons For Christmas Tree... Astronomers Find Pluto as Massive as Earth... dr. Hubble Finds Galaxies Evenly Scattered in Space...
Science News March 27, 2004 Ivars Peterson	Pinpointing Killer Asteroids Astronomers have identified more than 230,000 asteroids in orbit around the sun, and the number is increasing daily. Some of these objects are on courses that could lead to a collision with Earth. If the asteroid is sufficiently large, the results could be catastrophic.
Salon.com June 29, 2001 Suzy Hansen	We've got company Astronomer David Darling talks about the controversial science of astrobiology and the near-certainty that extraterrestrial life forms exist in our solar system...
Popular Mechanics September 2006	Scientists Are Finding Life In Earth's Coldest, Hottest, Weirdest Places By creating an alternative life chemistry in the lab, astrobiologist Steven Benner hopes to uncover a formula for alien microbes. How five big questions about life on our planet are shaping the search for it on other worlds.
Scientific American November 7, 2005 Mark Alpert	Red Star Rising Small, cool stars may be hot spots for life
Geotimes May 2006 Kathryn Hansen	Sunspot Outlook 2012 The future of the sun appears spotty, according to some solar scientists. By incorporating physical observations of the sun into a model, some scientists predict that the sun will boast more sunspots during its next cycle than previous estimates anticipated.
Scientific American August 2008 Musser et al.	Whatever Happened to Anesthesia and Pain? Planetary protection from Jupiter... Personal gene tests... Valdez payout... Prince William sound and fury...
Geotimes January 2004 Richard P. Binzel	Asteroid Futures The efforts to locate large asteroids that might impact Earth, and what could be done if a threat was found.
Science News September 10, 2005 Ivars Peterson	Celestial Atomic Physics Objects in the solar system often have chaotic and unpredictable trajectories. This same uncertainty also appears in atomic and molecular systems.
Science News October 5, 2002	TimeLine: October 1, 1932 Warning spots or targets?... Cosmic rays bombard earth with 40,000 million volts... New nebular theory explaining origin of planets proposed...