Lifted form reddit - 6 and 7 are pretty crazy
Here are some details from NASA's conference:
1) Spitzer detects 7 earth size planets around the TRAPPIST-1 Star System
2) 40 light years away
3) 3 planets are in the right zone for liquid water
4) Have measured the masses and radi of earth-size planets
5) Can look at atmosphere and bio-signatures
6) Planets are close to each other, you would see them similarly as you would see Earth’s moon.
7) Planets are so close, they interact gravitationally on each other.
8) Trappist-1e is very close in size to earth. It receives a similar amount of light as Earth does.
9) Trappist-1f (MIGHT) be water-rich and similar in size as earth (NASA just said currently no detection of water). Receives about as much light as Mars.
10)Trappist-1g is largest in the system, 13% larger radius than Earth. Receives about as much light as Mars and the Asteroid belt.