the amount of planets in this life-system has not yet been found but many scientist are still trying to find out do to mars water roots
At least 1300 outside our solar system with the Kepler telescope.
Earth's scientist have not found life on other planets to date.
scientist have found many other "planets" like Pluto this is just one of the many ice chunks floating in space
over 75,scientist say so far they've found 500 and still counting!
Scientist's are discovering new planet's all the time. They call these planets exoplanets. As of November 2009 there are 404 planets outside of our own solar system.
They live in conditions similar to those likely to be found on other planets.
An Astronomer is a scientist who studies the stars and planets.
They found stars in the sky that moved in regular patterns, and that kept coming back
An Astronomer is a scientist who studies the stars and planets.
Ptolemey is a scientist that studied the planets and he discovered new planets in place.
None.
There are 464 extrasolar planets, and 8 planets within our Solar System. This makes a total of 470 known planets.
Scientist have been sending rovers and astronauts to the other planets to detect life on other planets. (I think I'm not 100% sure,sorry)