Answers

2015-07-29T00:18:54+08:00
There are 8 planets and 5 dwarf planets.

^_^v hope I helped
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Universe, not just milky way
yan nga po :3
2015-07-29T01:57:27+08:00
There are 8 planets in the solar system namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune (Pluto are now considered as a giant asteroid and not a planet)

But how many planets are there IN THE UNIVERSE? Well, I don't have an idea. Maybe, there are millions or even billions if them.
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If we are going to focus on Solar System ONLY, we have actually 9 planets including the pluto. But if you're talking about universe, there are zillions of planets out there waiting to be discover.
I agree to that.