Maybe 4 moons. 1 of them is 5 km away from earth. The normal moons of earth is soon going to be gone away from earth. It goes 3.8 cm away from earth each year. Soon our nearest moon is going to be gone from us in a lot if years.
Earths number of moons are one. it's Latin name is Luna.
Just the one.
None.
Venus has no moons. It may have had some before but now it has no moons.
Ganymede is Jupiter's biggest moon and currently astronomers think it has 63 moons.
The Moon
Some older science textbooks used to state that Jupiter had 16 moons, but several recent space probes have discovered a few dozen more. Jupiter is now known to have 63 moons, and more are almost certain to be discovered. Earth, on the other hand, has just the one Moon.
I believe that might be Saturn. A lot of people say that Saturn has 64 moons and stuff like that, but very few are actually moons. I've personally seen 3 moons, but the third might have been a star. Comment: No, it's not Saturn. Neptune is the probable answer, but it now has more than 8 known moons. The two moons seen from Earth are Triton and Nereid.
Neptune has 13 moons ,as of now (2012).
Venus has no moons. It may have had some before but now it has no moons.
Muchas lunas. (Speaking of actual satellites around planets) Hace muchas lunas ("Many moons ago") Muchas lunas a partir (in many moons (from now))
Mars has about 2 moons. Phobos and Coibos whatever but they both mean panic and scare
We only know about the number of moons for our own solar system. Technology now lets us see very large planets around other nearby stars. We have found a few near Earth size. However currently we can not detect moons around planets in other solar systems.
Ganymede is Jupiter's biggest moon and currently astronomers think it has 63 moons.
Saturn now has more then 60 moons
It started on Earth Day, April 20, 2010. It has now been 71 days as on June 29, 2010.
An answer from an old textbook would say that those planets are Earth and Pluto. Now only Earth fits that criterion as Pluto is no longer considered a planet and is now known to have five moons.
27 known moons right now......
Life would probably be unchanged. if you mean a second moon as large as the one we currently have, it would be very much like it is now, only there is a slight possibility of gravitational disruption causing the moons to collide, or one of the moons to collide with us.