Because the larger planets are easier to see, the smaller ones may be there, but not large enough for our modern equipment to accurately detect.
Yes. To date scientists have discovered well over a thousand planets orbiting other stars. It is believe that a large portion of the stars in the night sky have planets.
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Yes. As of August 2015 scientists have discovered nearly 2,000 planets orbiting other stars.
The surprising thing to me is how MANY extra-solar planets have been discovered. Considering the limitations of the Kepler Space Telescope's design, this indicates that there may be planets around a majority of the stars.
No. We know what the stars are. They are not planets. They are distant suns, many of which do have undiscovered planets.
Two in our own solar system, and nearly 1,000 in orbit around other stars.
No. Stars are like suns, around which planets may orbit.
Planets orbit the sun. Stars do not.
Yes, recent research has found that a large percentage of stars have planetary systems. It is now believed that planets are a common feature in our galaxy, with some stars possibly hosting multiple planets. The discovery of thousands of exoplanets in the last few decades has increased our understanding of the prevalence of planets in the universe.
On the contrary! A star has planets, which circulate it. And planets have moons. Stars do not circle planets.
As of now (late 2013), over 700 planets have been found to exist in orbit around other stars, and more are constantly being discovered.
Almost all stars are significantly larger than almost all planets.