Smallest 'Earth-like' planet seen
129080
European scientists have discovered what they describe as the smallest Earth-like planet orbiting a star outside of our Solar System.
665553
New observations of dust around young stars suggests collisions of large asteroid-like objects and fledgling planets are frequent. But that doesn't likely stop the formation of rocky planets like Earth, a process that may well be common, the results suggest.
664248
NASA's Opportunity Mars rover has come across  an interesting object&nbsp;-- perhaps a meteorite sitting out in the open at Meridiani  Planum. Initial data taken by the robot's Mini-Thermal Emission Spectrometer  (Mini-TES) is suggestive that the odd-looking rock is made of  metal.
516243
A tiny telescope has spotted a giant planet circling a faraway star, using a technique that could open a new phase of planetary discovery, according to scientists.
473116
Astronomers have discovered a new class of planets that take less than a day to whiz round their parent stars.
270802
It is the first planetary system that really looks like our own, with outer giant planets and room for smaller inner planets, astronomers say.
392861
Jet Propulsion Lab -- With eyes sharper than any that have peered at Saturn before, the Cassini spacecraft has uncovered two moons, which may be the smallest bodies so far seen around the ringed planet.     The moons are approximately 3 kilometers (2 miles) and 4 kilometers (2.5 miles) across -- smaller than the city of Boulder, Colorado...
110951
NASA's infrared eyes are probing the beginnings of both stars and planets.  In two separate observations, the Spitzer Space Telescope has uncovered the warm glow from a possible stellar infant and an icy disk where planets may one-day form.
642933
Washington, DC- Using a network of small automated telescopes known as HAT, Smithsonian astronomers have discovered a planet unlike any other known world.
34606
Astronomers discover a newborn planet in a solar system that is still in the process of forming.
618439
Before spaceprobes could photograph Venus up close, the second planet from the Sun was often compared to a sister world, much like the Earth. Planetary scientist, David Grinspoon, discusses with Astrobiology Magazine how that view evolved to consider the extremes encountered on the Venusian surface.
235513
A nearby star thought to harbor comets and asteroids now appears to be home to planets, too. The presumed worlds are smaller than Jupiter and could be as tiny as Pluto, new observations suggest.
549828
More than one-third of the giant planet systems recently detected outside our solar system may harbor Earth-like planets covered in deep global oceans that offer abundant potential for life, according to a new study by scientists associated with NASA's Astrobiology Institute.
514274
With a new spacecraft bound for Mercury, that tiny planet&nbsp;near the heart of the solar system, researchers are hoping to solve a slew of riddles about the small world.
378327
Rocky planets with conditions suitable for life may be more common than previously thought, a study finds
763207
Astronomers say they have discovered the youngest planet to date circling a sun-like star, a find that will be a boon to the field of planet-formation theory.
383215
A âsuper Earthâ planet has been discovered in a star system 50 light years away. It is the smallest world to be found outside our Solar System, and probably the first rocky planet found so far, astronomers revealed on Wednesday.