The solar system is much more complicated now, astronomers say, than in 1930 when Clyde Tombaugh added Pluto to the inventory of wandering lights circling the Sun.
The solar system has been studied for decades
The solar system is much more complicated now, astronomers say, than in 1930 when Clyde Tombaugh added Pluto to the inventory of wandering lights circling the Sun.

Can we draw the following conclusion?
The solar system has been studied for decades

Options: 

 - yes

 - it is not possible to tell

 - no
yes
The solar system is much more complicated now, astronomers say, than in 1930 when Clyde Tombaugh added Pluto to the inventory of wandering lights circling the Sun.

Can we draw the following conclusion?
The solar system has been studied for decades

Options: 

 - yes

 - it is not possible to tell

 - no
user
yes
assistant