How many solar systems do we know about?
Question:
Answer:
As of April 18th, 2006 we know of 152 planetary systems other than our own containing a total of 176 planets. This number grows fairly frequently as more and more observations are being made.
just ours, but there are other galaxies out there
In the last 15 years or so, astronomers have determined the locations of more than 40 planets outside of our own solar system. There was big news earlier this year when the first terrestrial one was discovered (as opposed to a gas giant). I'm not sure which star systems they are all in, though.
too many, but the Hubble telescope can't really zoom on the individual planets, they are making a telescope for that, it would be out in 2008.
We know of 188 other planets beyond our solar system (three more were found just three days ago!)
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